Definitions

unsuccessful

[uhn-suhk-ses-fuhl] / ˌʌn səkˈsɛs fəl /

ADJECTIVE

failing

Synonyms

STRONGEST

abortive disastrous doomed failed foiled fruitless futile ill-fated ineffective ineffectual losing thwarted useless vain

WEAK

defeated unlucky

Antonyms

STRONGEST

effective effectual fruitful hopeful lucky productive profitable successful useful