8 Hardest Programming Languages to Avoid as Beginners

Once upon a time, three friends decided to learn programming and become developers. All three loved technology, but each chose a very different path.

The first friend followed the traditional route. He started with C, moved to C++, explored Java, and later tried Assembly language. His journey was tough, but structured. He learned how memory works, how syntax matters, and why low-level programming can test every beginner’s patience.

The second friend wanted a smoother start. He chose Python because it was beginner-friendly, easy to read, and faster to write. Soon, he was building small projects with Python, HTML, and CSS. Later, he used that foundation to move into advanced fields like web development, automation, data science, and AI.

The third friend wanted something different. He did not want the easiest path. He wanted to explore the hardest programming languages and prove that he could handle what most beginners avoid. That is when he came across names like Malbolge, Brainfuck, Whitespace, INTERCAL, Cow, Prolog, LISP, and Haskell.

At first, these languages looked exciting. They felt rare, mysterious, and intellectually challenging. Soon, he realized something important. Some programming languages are difficult because they teach deep concepts. Others are difficult because they were intentionally designed to confuse programmers.

So, what makes a programming language hard to learn? Is it complex syntax, unusual logic, memory control, mathematical thinking, or deliberately unreadable code?

Many developers call Malbolge the hardest programming language in the world. But is it really the toughest one? That depends on how we define difficulty. Several other languages can challenge Malbolge in their own strange, technical, and sometimes hilarious ways.

Let’s look at the hardest programming languages and understand what makes each one so difficult.

1. Malbolge

Malbolge was created by Ben Olmstead in 1998 as an esoteric programming language that was meant to be painfully hard to use. Its name comes from Malebolge, the eighth circle of hell in Dante’s Inferno, which already gives a fair warning about the experience. Unlike normal languages created to help programmers build software faster, Malbolge was created to do the opposite. It used encrypted instructions, base-three arithmetic, and self-altering code to make even a basic program feel like solving a cursed puzzle.

The quirky part is that Malbolge became famous because of its impracticality. It was not designed for startups, apps, websites, or enterprise systems. It was designed to test the limits of language design itself. 

A Hello World program in Malbolge looks like this:

(=<`#9]~6ZY32Vx/4Rs+0No-&Jk)"Fh}|Bcy?`=z]Kw%oG4UUS0/@-ejc(:'8dc

What makes Malbolge difficult:

• Self-modifying code: The program can alter its own instructions during execution.
• Ternary architecture: It uses base-3 logic, which feels unfamiliar to most programmers.
• Unreadable syntax: The code does not visually reveal what it is doing.
• Encrypted operations: Instructions are transformed before execution.
• Debugging challenge: Tracking errors is extremely difficult because the code keeps changing.

Malbolge is not hard because it teaches normal software development. It is hard because it was created as a programming nightmare.

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2. Whitespace

Whitespace was created by Edwin Brady and Chris Morris at the University of Durham in the early 2000s. It became publicly known around April 2003, when it gained attention after appearing on Slashdot around April Fool’s Day. Many people thought it was a joke, but Whitespace was a real working language with a real interpreter. 

Its origin is clever because most programming languages either ignore extra whitespace or use it only for formatting. Whitespace flipped that idea completely. It made spaces, tabs, and linefeeds the only meaningful characters. Everything visible, including letters, numbers, and punctuation, could be ignored. That made Whitespace both funny and technically interesting because a working program could hide inside an ordinary-looking text file.

Since actual Whitespace code is hard to display, it is usually explained like this:

[Space][Space][Tab][Linefeed]

[Tab][Linefeed][Space][Space]

What makes Whitespace difficult:

• Invisible syntax: The meaningful code cannot be seen normally.
• Stack-based execution: Values are pushed, popped, and processed through a stack.
• Hard debugging: One extra space or missing tab can break the program.
• No visual readability: Developers cannot quickly scan the code for logic.
• Hidden behavior: Programs can be embedded inside normal-looking text.

Whitespace is quirky because it turns blank space into logic. It is difficult because your biggest bug may literally be something you cannot see.

3. INTERCAL

INTERCAL was created in 1972 by Donald R. Woods and James M. Lyon at Princeton University. It is widely considered one of the earliest esoteric programming languages. The full name is “The Compiler Language With No Pronounceable Acronym,” which perfectly matches its personality. The original manual says the language was designed on the morning of May 26, 1972, which feels strangely specific and very INTERCAL-like. 

INTERCAL was born as a parody of programming languages popular at the time. It mocked the growing complexity of language design in the 1960s and 1970s by creating a language that was deliberately awkward, confusing, and funny. Commands like PLEASE, DO, FORGET, and GIVE UP made the language feel less like software engineering and more like arguing with a sarcastic compiler. 

A Hello World program in INTERCAL may look like this:

DO ,1 <- #13

PLEASE DO ,1 SUB #1 <- #72

DO ,1 SUB #2 <- #101

DO ,1 SUB #3 <- #108

DO ,1 SUB #4 <- #108

DO ,1 SUB #5 <- #111

DO ,1 SUB #6 <- #44

DO ,1 SUB #7 <- #32

DO ,1 SUB #8 <- #87

DO ,1 SUB #9 <- #111

DO ,1 SUB #10 <- #114

DO ,1 SUB #11 <- #108

DO ,1 SUB #12 <- #100

DO ,1 SUB #13 <- #33

PLEASE READ OUT ,1

PLEASE GIVE UP

What makes INTERCAL difficult:

• Unusual keywords: Commands do not follow normal programming vocabulary.
• Strange control flow: Program logic is intentionally awkward.
• Politeness rules: Some versions require the right amount of PLEASE.
• Non-standard operators: Simple operations can look unnecessarily confusing.
• Satirical design: The language was made to mock programming conventions.

INTERCAL is difficult because it fights your instincts. Every time you expect a clean syntax rule, INTERCAL politely refuses.

4. Cow

Cow was created by Sean Heber in the early 2000s as a humorous esoteric programming language inspired by Brainfuck. The language uses variations of the word moo as commands, with different letter cases changing the meaning. So Moo, MOo, MoO, and MOO are not decoration. They are actual instructions. 

Its origin is rooted in programmer humor. Cow takes the minimalist memory-tape style of Brainfuck and wraps it in barnyard absurdity. Instead of looking like a stream of symbols, Cow looks like a confused cow got access to a compiler. Under the joke, it still follows a real computational model with instructions, memory cells, pointer movement, loops, and output. 

A Cow program can look like this:

MoO MoO MoO MoO MoO MoO MoO MoO MOO

MOo MoO MoO MoO MoO MoO MoO MoO MoO MoO MoO Moo

MOo MoO MoO MoO MoO MoO MoO MoO Moo

MOo MoO MoO MoO Moo

What makes Cow difficult:

• Case-sensitive commands: Tiny letter-case changes can change the meaning.
• Brainfuck-style logic: It uses memory cells and pointer movement.
• Minimal readability: Most instructions look almost identical.
• Manual memory handling: Developers must think in cells, values, and pointer positions.
• Loop complexity: Repeated moo commands make flow hard to trace.

Cow is quirky because it looks like a joke. It is difficult because the joke still expects you to understand low-level computation.

5. Brainfuck

Brainfuck was created in 1993 by Swiss student Urban Müller. His goal was to make an extremely small compiler for Amiga OS, and he reportedly produced a compiler of only 240 bytes. The language was influenced by earlier minimalist languages such as FALSE, but Brainfuck became more famous because it reduced programming to only eight commands. 

The origin of Brainfuck explains why it feels so brutal. It was not built to be readable, comfortable, or beginner-friendly. It was built to prove how little syntax a language needs while still being computationally complete. That is why Brainfuck has a strange charm. It is tiny, clever, annoying, and technically impressive all at once. 

Hello World in Brainfuck looks like this:

++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.

<<+++++++++++++++.>.+++.------.--------.>+.>.

What makes Brainfuck difficult:

• Only eight commands: Complex logic must be built from very tiny operations.
• Manual pointer control: You must track the active memory cell yourself.
• ASCII-based output: Text output is created by building character values manually.
• Loop tracking: Brackets control loops, but nested loops quickly become confusing.
• No abstractions: There are no readable variables, classes, or modules.

Brainfuck is difficult in a beautifully brutal way. It proves that a language can be tiny and still make your brain work overtime.

6. Prolog

Prolog was created around 1972 by Alain Colmerauer and Philippe Roussel in France, at the Artificial Intelligence Group of the Faculty of Sciences of Luminy, Aix-Marseille II University. Its name comes from the French phrase “Programmation en logique,” meaning “programming in logic.” 

Prolog did not begin as a normal general-purpose programming language. It came from research in artificial intelligence, computational linguistics, automated theorem proving, and natural language processing. Instead of telling the computer exactly what steps to follow, Prolog allowed programmers to define facts and rules, then ask logical questions. That is why Prolog feels less like giving commands and more like building a small reasoning machine. 

Hello World in Prolog looks simple:

:- initialization(main).

main :-

    write('Hello, World!'),

    nl,

    halt.

A more Prolog-like example looks like this:

parent(john, mary).

parent(mary, alice).

grandparent(X, Z) :-

    parent(X, Y),

    parent(Y, Z).

What makes Prolog difficult:

• Declarative thinking: You describe relationships instead of writing direct steps.
• Unification: Variables are matched through logical patterns.
• Backtracking: Prolog automatically retries alternatives when one path fails.
• Recursive logic: Many problems are solved through recursive rules.
• Less control over flow: The engine decides how to search for answers.

Prolog is hard because it asks you to stop commanding the computer and start reasoning with it.

7. LISP

LISP was developed by John McCarthy in 1958 while he was at MIT. It was created for artificial intelligence research and symbolic computation. The name LISP comes from LISt Processing, because the language was built around the idea of representing both data and code as lists. 

LISP’s origin is important because it shaped decades of programming language design. It introduced or popularized ideas such as recursion, symbolic expressions, garbage collection, and treating code as data. At a time when programming was often closely tied to hardware and numerical computation, LISP gave researchers a flexible way to work with symbols, logic, and AI problems. That is why LISP still feels old, strange, and futuristic at the same time. 

Hello World in Common Lisp looks like this:

(format t "Hello, World!~%")

A simple function looks like this:

(defun square (x)

  (* x x))

What makes LISP difficult:

• Heavy parentheses: Nested expressions can overwhelm beginners.
• Prefix notation: Operators come before values, such as (+ 2 3).
• Code-as-data model: Programs can manipulate other programs.
• Macro system: LISP macros are powerful but conceptually deep.
• Functional style: Recursion and expression-based thinking are common.

LISP is not difficult because it is messy. It is difficult because it is unusually flexible, and that flexibility takes time to understand.

8. Haskell

Haskell was developed by a committee of researchers who wanted a common, open, purely functional programming language. The first Haskell Language Report was published in 1990, giving the functional programming research community a shared language to build around. 

The language was named after Haskell Curry, a mathematician whose work influenced functional programming and type theory. Haskell’s origin is more academic than chaotic. It was not created as a joke like INTERCAL or Cow. It was created to bring together serious ideas such as lazy evaluation, pure functions, strong static typing, and mathematical program design. That is why Haskell can feel intimidating at first. It expects programmers to think less like instruction writers and more like problem modelers. 

Hello World in Haskell looks like this:

main :: IO ()

main = putStrLn "Hello, World!"

A simple function looks like this:

square :: Int -> Int

square x = x * x

What makes Haskell difficult:

• Pure functional programming: Side effects are handled carefully through types.
• Strong static typing: The type system is powerful and strict.
• Lazy evaluation: Expressions are evaluated only when needed.
• Monads: Concepts like IO, Maybe, and Either can confuse beginners.
• Immutability: Values are not changed after creation.

Haskell is difficult because it asks programmers to think in functions, types, and transformations instead of step-by-step commands. Once that mental shift happens, the language becomes surprisingly clean and powerful.

Conclusion

The hardest programming languages are not always the ones with the longest syntax or the most features. Sometimes, they are hard because they are too minimal, like Brainfuck. Sometimes, they are hard because they are invisible, like Whitespace. Sometimes, they are hard because they behave like a puzzle, a prank, or a full-blown compiler tantrum, like Malbolge and INTERCAL.

So, should beginners start with these languages? Probably not. A beginner is better off learning Python, C, Java, or JavaScript first. But once you understand programming basics, these unusual languages can become fascinating playgrounds. They show how creative, strange, funny, and powerful programming can be.

Malbolge may make you question your career choices. Brainfuck may make you question your brain. Cow may make you question why a computer is mooing at you. But together, these languages prove one thing clearly: programming is not only about writing code. It is about learning different ways to think.

FAQs

Is C++ the most difficult programming language?

No. C++ is an easy-to-code programming language understood and followed by many developers worldwide. Compared to the inconsumable and hardest programming languages like Malbolge, whitespace, COW, internal, and others, C++ is a simple and effective programming language.

Is Python the hardest programming language?

Python is considered the easiest programming language to learn and execute. It has a relatively simple syntax and readymade functions or libraries.

Can I study Python in 2 days?

Yes! You can study Python in 2-days and construct your career pathway with further upskilling. To learn Python in just 2 days, You can sign up for a comprehensive online course with certification. You can develop a career pathway from such a course and master Python with constant upskilling and keeping up with trends in Python.

Is learning hard programming languages worth it?

Well, learning hard programming languages isn’t necessarily rewarding, except in some cases. Most esoteric languages are considered the hardest programming languages. These were just introduced to make coding more challenging for the sake of experience.

Although there are more conventional programming languages like C++, Assembly Languages, Haskell, Prolog, etc. which are considered hard, yet can be really useful and fetch high pay in case of unique requirements.