The meaning of COMPLEXITY is something complex. How to use complexity in a sentence.

COMPLEXITY meaning: 1. the state of having many parts and being difficult to understand or find an answer to: 2. the…. Learn more.

Definition of complexity noun from the Oxford Advanced Learner's Dictionary. [uncountable] the state of being formed of many parts; the state of being difficult to understand. I was astonished by the size …

Complexity is the state of having many different parts connected or related to each other in a complicated way. ...a diplomatic tangle of great complexity.

Mar 9, 2026 · Complexity refers to a scientific theory that asserts that some systems display behavioral phenomena that are inexplicable by conventional explanations or analysis of its individual parts.

Mar 11, 2026 · Complexity describes a state where many interconnected parts interact in ways that make the whole system difficult to predict or reduce to simple rules. The word comes from the …

Definitions of complexity often depend on the concept of a "system" – a set of parts or elements that have relationships among them differentiated from relationships with other elements outside the …

com•plex•i•ty (kəmˈplɛk sɪ ti) n., pl. -ties. 1. the state or quality of being complex; intricacy: the complexity of urban life. 2. something complex: the complexities of foreign policy.

Jan 31, 2026 · (uncountable) The state of being complex; intricacy; entanglement. The battle was like the grinding of an immense and terrible machine to him. Its complexities and powers, its grim …

COMPLEXITY definition: the state or quality of being complex; intricacy. See examples of complexity used in a sentence.