unsuccessful

From un- +‎ successful.

• IPA^(key): /ˌʌnsəkˈsɛsfl̩/

• Audio (Southern England):

  (file)

• Hyphenation: un‧suc‧cess‧ful

unsuccessful (comparative more unsuccessful, superlative most unsuccessful)

1. Failed, not successful.

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

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

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

• successful

• unsuccessfully
• unsuccessfulness