unsuccessful

/ˌʌnsəkˈsɛsfl̩/

Misollar

Their unsuccessful attempt met with tragedy.
The captain had the unsuccessful mutineers flogged.
Tom was unsuccessful in finding a job.
He commented on his unsuccessful business negotiation.
I'm afraid your plan will be unsuccessful.
Rodrigo tried to break in, but was unsuccessful.

sifat adjective

Failed, not successful. His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing.

Manbalar: Wiktionary (Free Dictionary API orqali), Datamuse, Tatoeba (CC BY 2.0 FR), MyMemory.