Synonyms of deficient

1 Syllable

short, scant, bad, weak, shy, less, rare

2 Syllables

stupid, parter, lacking, scanty, scarcer, badder, junker, sketchy, rarest, devoid, failing, flawed, wanting, faultier, minus, meager, marred, scantiest, baddest, scarce, scarcest, scantier, scrimpy, skimpier, cruddy, amiss, faulty, skimpy, standout, half-done

3 Syllables

damaged, stupidest, uncostly, impaired, rarer, shorthanded, rinkydink, subtilest, unthriving, thick-headed, inferior, exiguous, infrequent, imperfect, injured, niggardly, second-rate, second-best, rinky-dink, subtiler, unequal

4 Syllables

incomplete, unfinished, defective, unsufficient, destitute, insufficient, unfulfilled, unassembled, unfateful

5 Syllables

bottom-of-barrel, unretentive, unintelligent, inadequate, inconclusive, unaccomplished, unexecuted, unconsummated

6 Syllables

unsatisfactory, dissatisfactory