complexity

noun

com·​plex·​i·​ty kəm-ˈplek-sə-tē How to pronounce complexity (audio)
käm-
plural complexities
1
: something complex
the complexities of the murder trial
2
: the quality or state of being complex
the complexity of the contract

Examples of complexity in a Sentence

He was impressed by the complexity of the music. The diagram illustrates the complexity of the cell's structure. He doesn't grasp the complexity of the situation.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
PepsiCo’s transformation journey serves as a blueprint for other organizations navigating the complexities of global supply chains and striving to truly orchestrate their supply chains. Forbes.com, 6 Aug. 2025 The musical doesn’t shy away from the allegations that shadowed Jackson’s later career, and Fields-Green has had to find ways to honor both the artistry and the complexity. Naman Ramachandran, Variety, 6 Aug. 2025 In the near-term, the biggest hurdles include logistics costs, operational complexity and regulatory uncertainty. Kate Nishimura, Sourcing Journal, 5 Aug. 2025 The vibrant animation of the upcoming film, out Oct. 17, will bring the complexities of Jim and Credenza Twit and their unruly amusement park, Twitlandia, to life. Larisha Paul, Rolling Stone, 5 Aug. 2025 See All Example Sentences for complexity

Word History

Etymology

complex entry 2 + -ity, perhaps after French complexité

First Known Use

1661, in the meaning defined at sense 1

Time Traveler
The first known use of complexity was in 1661

Browse Nearby Words

Cite this Entry

“Complexity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/complexity. Accessed 14 Aug. 2025.

Kids Definition

complexity

noun
com·​plex·​i·​ty kəm-ˈplek-sət-ē How to pronounce complexity (audio)
käm-
plural complexities
1
: something complex
the complexities of the English language
2
: the quality or state of being complex

More from Merriam-Webster on complexity

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!