complexity
noun
com·plex·i·ty
kəm-ˈplek-sə-tē 
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
Defense officials say the extended timeline reflects the complexity of submarine testing, especially for a prototype platform.
—
Aamir Khollam, Interesting Engineering, 27 Jan. 2026
While the study highlights monk fruit's chemical complexity, researchers cautioned that the findings do not prove the fruit prevents disease.
—Deirdre Bardolf, FOXNews.com, 27 Jan. 2026
The company states that every dataset, every algorithm, is curated by veterinarians who have worked in clinics, faced emergency cases, and navigated the complexities of treatment decisions.
—Nia Bowers, USA Today, 27 Jan. 2026
Treating Black viewers, whose buying power is expected to exceed $2 trillion in 2026, as a monolith rather than showing complexity in life experience.
—Essence, 26 Jan. 2026
See All Example Sentences for complexity
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Aamir Khollam, Interesting Engineering, 27 Jan. 2026
While the study highlights monk fruit's chemical complexity, researchers cautioned that the findings do not prove the fruit prevents disease.
—Deirdre Bardolf, FOXNews.com, 27 Jan. 2026
The company states that every dataset, every algorithm, is curated by veterinarians who have worked in clinics, faced emergency cases, and navigated the complexities of treatment decisions.
—Nia Bowers, USA Today, 27 Jan. 2026
Treating Black viewers, whose buying power is expected to exceed $2 trillion in 2026, as a monolith rather than showing complexity in life experience.
—Essence, 26 Jan. 2026
See All Example Sentences for complexity
Cite this Entry
“Complexity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/complexity. Accessed 3 Feb. 2026.
Copy CitationKids Definition
complexity
noun
com·plex·i·ty
kəm-ˈplek-sət-ē
käm-
plural complexities
1
: something complex
the complexities of the English language
2
: the quality or state of being complex
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