Synonyms of insufficient

Adjective

1. insufficient (vs. sufficient), deficient, depleted, low, inadequate, poor, short, lean, skimpy, light, scant(predicate), short, shy(predicate), meager#1, meagre#1, meagerly#1, stingy#2, scrimpy

usage: of a quantity not able to fulfill a need or requirement; "insufficient funds"

Definition and meaning of insufficient (Dictionary)