failing

(s) below acceptable in performance
- received failing grades

Nouns

(n) a flaw or weak point
- he was quick to point out his wife's failings
weakness,
(n) failure to reach a minimum required performance
- his failing the course led to his disqualification
- he got two flunks on his report
flunk,

Synonyms

weakness flunk

Antonyms

qualifying passing pass

Words of close approximity