WordReference Random House Learner's Dictionary of American English © 2026
un•suc•cess•ful /ˌʌnsəkˈsɛsfəl/USA pronunciation adj.
WordReference Random House Unabridged Dictionary of American English © 2026- not successful.
un•suc•cess•ful
(un′sək ses′fəl),USA pronunciation adj.
un′suc•cess′ful•ly, adv.
un′suc•cess′ful•ness, n.
- not achieving or not attended with success:an unsuccessful person; an unsuccessful venture.
- un-1 + successful 1610–20
un′suc•cess′ful•ness, n.
- hapless, unfortunate, foiled, baffled.
'unsuccessfully' also found in these entries (note: many are not synonyms or translations):
Babeuf
- badly
- David I
- grief
- Matilda
- Vargas Llosa
- Fort Meigs
- Merops
- New Jersey plan
- oppose
- Virginia plan