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
The team chose to validate a compact platform before scaling up mission complexity.
—
Aamir Khollam, Interesting Engineering, 9 Jan. 2026
Despite so much progress, however, the cost and complexity of the system means very few people are satisfied with their care.
—Eleanor Pringle, Fortune, 9 Jan. 2026
The firm focuses on helping institutions establish overseas campuses, strengthen global collaborations, manage accreditation and curriculum requirements, and address logistical and administrative complexities.
—Jason Phillips, USA Today, 9 Jan. 2026
Teddy gains depth, and his relationship with Pine complexity.
—Judy Berman, Time, 9 Jan. 2026
See All Example Sentences for complexity
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Aamir Khollam, Interesting Engineering, 9 Jan. 2026
Despite so much progress, however, the cost and complexity of the system means very few people are satisfied with their care.
—Eleanor Pringle, Fortune, 9 Jan. 2026
The firm focuses on helping institutions establish overseas campuses, strengthen global collaborations, manage accreditation and curriculum requirements, and address logistical and administrative complexities.
—Jason Phillips, USA Today, 9 Jan. 2026
Teddy gains depth, and his relationship with Pine complexity.
—Judy Berman, Time, 9 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 12 Jan. 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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