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unsuccessful

[ uhn-suhk-ses-fuhl ]
/ ˌʌn səkˈsɛs fəl /
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adjective
not achieving or not attended with success: an unsuccessful person;an unsuccessful venture.
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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of unsuccessful

First recorded in 1610–20; un-1 + successful

OTHER WORDS FROM unsuccessful

un·suc·cess·ful·ly, adverbun·suc·cess·ful·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use unsuccessful in a sentence

British Dictionary definitions for unsuccessful

unsuccessful
/ (ˌʌnsəkˈsɛsfʊl) /

adjective
not having succeeded

Derived forms of unsuccessful

unsuccessfully, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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