complication

noun

com·​pli·​ca·​tion ˌkäm-plə-ˈkā-shən How to pronounce complication (audio)
Synonyms of complicationnext
1
a
: complexity, intricacy
especially : a situation or a detail of character complicating the main thread of a plot
b
: a making difficult, involved, or intricate
c
: a complex or intricate feature or element
d
: a difficult factor or issue often appearing unexpectedly and changing existing plans, methods, or attitudes
2
: a secondary disease or condition developing in the course of a primary disease or condition

Examples of complication in a Sentence

The negotiations stalled when complications arose. Pneumonia is a common complication of AIDS. She experienced complications during her pregnancy. The patient died of complications from surgery.
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.
Seymour saw the relatability in that complication, too. Julia Moore, PEOPLE, 13 Dec. 2025 Another complication is that the radome needs to be transparent to radar signals. Christopher McFadden, Interesting Engineering, 13 Dec. 2025 Others, like former Late Night host David Letterman, also floated the idea that the series may have been axed in order to minimize complications with the Federal Communications Commission over Paramount’s merger with Skydance media group. Emlyn Travis, Entertainment Weekly, 12 Dec. 2025 And though the dial may draw them in, the timepiece will also keep their attention thanks to its moonphase and date complication at 6 o’clock—giving them a peek of the starry night sky. Nicole Hoey, Robb Report, 12 Dec. 2025 See All Example Sentences for complication

Word History

Etymology

Middle English complicacioun, borrowed from Late Latin complicātiōn-, complicātiō "folding together, conglomeration," from Latin complicāre "to fold together, fold up" + -tiōn-, -tiō, suffix of verbal action — more at complicate entry 2

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of complication was in the 15th century

Browse Nearby Words

Cite this Entry

“Complication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/complication. Accessed 15 Dec. 2025.

Kids Definition

complication

noun
com·​pli·​ca·​tion ˌkäm-plə-ˈkā-shən How to pronounce complication (audio)
1
a
: an act or instance of complicating something
b
: a situation or detail of character that complicates a plot
c
: a complex feature or element
d
: something that makes a situation more complicated or difficult
we were unable to agree when complications arose
2
: a disease or bodily condition existing at the same time as and affecting the course or severity of another disease or condition

Medical Definition

complication

noun
com·​pli·​ca·​tion ˌkäm-plə-ˈkā-shən How to pronounce complication (audio)
: a secondary disease or condition that develops in the course of a primary disease or condition and arises either as a result of it or from independent causes

More from Merriam-Webster on complication

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