unsatisfactory

Definitions

Not good enough to fulfill a need or requirement.

Failing to provide satisfaction or contentment.

Examples

The quality of the work provided was deemed unsatisfactory by the project manager.

He received an unsatisfactory grade on his final exam due to a lack of preparation.

The hotel room was in an unsatisfactory condition, so we requested a full refund.

Synonyms

inadequate subpar deficient poor inferior lacking disappointing

Antonyms

satisfactory adequate excellent sufficient acceptable superb perfect