unsuccessful

adjective

un·​suc·​cess·​ful ˌən-sək-ˈses-fəl How to pronounce unsuccessful (audio)
Synonyms of unsuccessfulnext
: not successful : not meeting with or producing success
unsuccessfully adverb

Examples of unsuccessful in a Sentence

His last novel was unsuccessful. an unsuccessful attempt to fix the faucet ourselves
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.
Iran nuclear deal signed After a decade of unsuccessful attempts to rein in Iran’s nuclear ambitions, the Obama administration undertook a direct diplomatic approach beginning in 2013. Jeffrey Fields, The Conversation, 4 Apr. 2026 The house of another, Carlotta Walls, was bombed a month before her graduation, and the police subsequently tortured her father in an unsuccessful attempt to coerce a confession. Daniel Felsenthal, Pitchfork, 4 Apr. 2026 Republicans who backed the laughable and deservedly unsuccessful 2021 recall of Newsom won’t have a leg to stand on in blasting this as an undemocratic power play. U T Editorial Board, San Diego Union-Tribune, 3 Apr. 2026 Iran has been unsuccessful in its search for the missing crew, the Iranian state news agency Tasnim said, adding that local traders in the southwestern Kohgiluyeh and Boyer-Ahmad Province were offering a reward of 10 billion tomans ($76,000) for anyone who finds the crew alive. Leila Gharagozlou, CNN Money, 3 Apr. 2026 See All Example Sentences for unsuccessful

Word History

First Known Use

1617, in the meaning defined above

Time Traveler
The first known use of unsuccessful was in 1617

Browse Nearby Words

Cite this Entry

“Unsuccessful.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsuccessful. Accessed 8 Apr. 2026.

Kids Definition

unsuccessful

adjective
un·​suc·​cess·​ful ˌən(t)-sək-ˈses-fəl How to pronounce unsuccessful (audio)
: not successful : not having or producing success
unsuccessfully adverb

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