uncooperative

adjective

un·​co·​op·​er·​at·​ive ˌən-kō-ˈä-p(ə-)rə-tiv How to pronounce uncooperative (audio)
-ˈä-pə-ˌrā-
: marked by an unwillingness or inability to work with others : not cooperative
the suspect was uncooperative with investigators
an uncooperative witness
… he wonders whether it would be such a bad thing if their uncooperative nanny quit …Caitlin Flanagan
also : providing difficulty
struggled with an uncooperative corkscrew
uncooperative weather

Examples of uncooperative in a Sentence

Recent Examples on the Web
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Police say Ashlee has been uncooperative in the investigation, but she has not been named a person of interest in the case and hasn't been charged with a crime in connection with Melodee's disappearance. Samira Asma-Sadeque, PEOPLE, 27 Oct. 2025 Timeline narrows window of disappearance With only years-old photos of Melodee and an allegedly uncooperative mother, officials are working with scant details about the young girl. Cnn.com Wire Service, Mercury News, 27 Oct. 2025 With only years-old photos of Melodee and an allegedly uncooperative mother, officials are working with scant details about the young girl. Michelle Watson, CNN Money, 26 Oct. 2025 Years ago, one of us was in the Bahamas chasing a typically uncooperative lizard across dense and narrow branches, frustrated that its nimble agility was thwarting efforts to catch it. James T. Stroud, The Conversation, 13 Oct. 2025 See All Example Sentences for uncooperative

Word History

First Known Use

1799, in the meaning defined above

Time Traveler
The first known use of uncooperative was in 1799

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Cite this Entry

“Uncooperative.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncooperative. Accessed 3 Nov. 2025.

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