Synonyms for Insufficient | Insufficient at Open Dictionary of English by LearnThat Foundation

Synonyms for Insufficient (same or very similar meaning)

WordNet sense 1 (short):

shy

WordNet sense 2 (not enough; hard to find):

scarce

WordNet sense 3 (less than the correct or legal or full amount often deliberately so):

short

WordNet sense 4 (not sufficient to meet a need):

inadequate, poor

WordNet sense 5 (of a quantity not able to fulfill a need or requirement):

deficient

From the ODE community, based on WordNetadd/edit