unsuccessful

un·suc·cess·ful
U1N1S1U1C3C3E1S1S1F4U1L1
/ˌʌnsəkˈsɛsfl̩/

adjective

Failed, not successful.

“His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing.”

Opposite
Less commonScrabble 19

Meanings

adjectiveunsuccessful (comparative more unsuccessful, superlative most unsuccessful)

comparative more unsuccessful · superlative most unsuccessful

  1. Failed, not successful.

    His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing.

    1 more example

    For example, an unsuccessful men's deodorant was successfully remerchandised by repackaging, heavier advertising, a higher price and new brand name 'Brut'.

    2004, Luiz Moutinho, Charles S. Chien, Problems in marketing

Synonyms & antonyms

Opposite

adjectivenot successful; having failed or having an unfavorable outcome

Opposite

adjectivefailing to accomplish an intended result

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Englishsuccessful
  9. Englishunsuccessful

From un- + successful.

Full word history & related roots →

Translations

Ancient Greek ἄπρᾱκτος
  • ἄπρᾱκτος (áprāktos)failed, not successful
Bengali অকৃতকার্য, অসফল
  • অকৃতকার্য (okritokarjo)failed, not successful
  • অসফল (ośophol)failed, not successful
Bulgarian неуспешен
  • неуспешен (neuspešen)failed, not successful
Chinese Mandarin 不成功
  • 不成功 (bùchénggōng)failed, not successful
Czech neúspěšný, nezdařilý
  • neúspěšnýfailed, not successful
  • nezdařilýfailed, not successful
Esperanto malsukcesa, sensukcesa
  • malsukcesafailed, not successful
  • sensukcesafailed, not successful
Finnish epäonnistunut
  • epäonnistunutfailed, not successful
French infructueux
  • infructueuxfailed, not successful
German erfolglos
  • erfolglosfailed, not successful
Hindi असफल
  • असफल (asphal)failed, not successful
Hungarian sikertelen
  • sikertelenfailed, not successful
Japanese 不成功
  • 不成功 (fuseikō)failed, not successful
Korean 성공하지 못한
  • 성공하지 못한 (seonggonghaji mothan)failed, not successful
Māori rahua, ngere
  • rahuafailed, not successful
  • ngerefailed, not successful
Polish nieudany
  • nieudanyfailed, not successful
Portuguese malsucedido
  • malsucedidofailed, not successful
Russian безуспе́шный, неуда́чный
  • безуспе́шный (bezuspéšnyj)failed, not successful
  • неуда́чный (neudáčnyj)failed, not successful
  • неуда́чливый (neudáčlivyj)failed, not successful
Spanish no exitoso
  • no exitosofailed, not successful
Tagalog bigo
  • bigofailed, not successful
Turkish başarısız
  • başarısızfailed, not successful
Ukrainian безуспі́шний, невда́лий
  • безуспі́шний (bezuspíšnyj)failed, not successful
  • невда́лий (nevdályj)failed, not successful
  • безрезульта́тний (bezrezulʹtátnyj)failed, not successful
Vietnamese bất thành, không thành công
  • bất thànhfailed, not successful
  • không thành côngfailed, not successful
Cite this entry
APA

unsuccessful. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/unsuccessful

MLA

“unsuccessful.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unsuccessful. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “unsuccessful,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/unsuccessful.

Source: unsuccessful on Wiktionary, CC BY-SA 4.0.