C1noun2K

Complexity

UK /["/kəmˈpleksəti/"]/US /["/kəmˈpleksəti/"]/

Definition

the state of being formed of many parts; the state of being difficult to understand

In simple words: How complicated or difficult something is.

Examples

  • The complexity of the problem required a multifaceted approach to find a solution.
  • In the realm of mathematics, complexity often arises from the interaction between different theories.
  • One of the challenges of modern architecture is managing the complexity of design and functionality.
  • The complexity of the software made it difficult for new users to navigate.
  • Biological systems exhibit high complexity, making them difficult to model accurately.

Usage notes

Use 'complexity' in conversations about systems, processes, or problems that are not easy to understand. It’s suitable for academic and professional discussions but might seem overly formal in casual chats.

Grammar pattern

noun + of + complexity

Memory hint

Think of 'complex' as a puzzle — the harder the puzzle, the greater the complexity.

Collocations

  • considerable
  • enormous
  • extraordinary
  • degree
  • level
  • convey
  • demonstrate
  • illustrate
  • arise (from something)
  • of… complexity
  • considerable
  • enormous
  • extraordinary
  • degree
  • level
  • convey
  • demonstrate
  • illustrate
  • arise (from something)
  • of… complexity

Synonyms

  • difficulty
  • complication
  • intricacy
  • sophistication
  • confusion

Antonyms

  • simplicity
  • clarity
  • ease

Common mistakes

  • 'Complex' is confused with 'complexity' — they are not interchangeable.
  • Using it as a countable noun, e.g., saying 'a complexity' when it usually refers to uncountable ideas.
  • Not recognizing its use in discussing both mathematical and real-world situations.