- Defective by Webster's
(a.) Lacking some of the usual forms of declension or conjugation; as, a defective noun or...
- Deficient by Webster's
(a.) Wanting, to make up completeness; wanting, as regards a requirement; not sufficient;...
- imperfect by WordNet
nounA tense of verbs used in describing action that is on-going. synonyms: progressive,...
- Incomplete by Webster's
(a.) Not complete; not filled up; not finished; not having all its parts or not having them all...
- lacking by WordNet
verbBe without.usage: "This soup lacks salt"; "There is something missing in my...