unsuccessful
Translation
unsuccessful, failed, fruitless
Examples
Their first attempt was unsuccessful.
Their first attempt was unsuccessful.
He was an unsuccessful actor.
He was an unsuccessful actor.
Grammar Patterns
unsuccessful in ((sth./-ing)) not achieving success in (sth.) She was unsuccessful in her job search.
an unsuccessful ((noun)) a failed (person/thing) It was an unsuccessful attempt.
Similar Words
Synonyms: failed, fruitless, ineffective; Antonyms: successful, triumphant
Etymology
From 'un-' (not) + 'success' + '-ful' (full of). It means 'not full of success'.
Memory Tips
Break it down into 'un-success-full'. Thinking of it as 'not full of success' makes the meaning clear.