Synonyms and Antonyms of deficient
- a diet deficient in calcium can lead to weak bones
- woefully deficient eyesight kept him out of military service
bad, bastard, bush, bush-league, crummy (also crumby), dissatisfactory, ill, inferior, lame, lousy, off, paltry, poor, punk, sour, suboptimal, subpar, substandard, unacceptable, unsatisfactory, wack [slang], wanting, wretched, wrong
abysmal, atrocious, awful, bitchin' [slang], brutal, damnable, deplorable, detestable, disastrous, dreadful, execrable, gnarly [slang], horrendous, horrible, pathetic, stinky, sucky [slang], terrible, unspeakable
bum, cheesy, coarse, common, crappy [slang], cut-rate, junky, lesser, low-grade, low-rent, mediocre, miserable, reprehensible, rotten, rubbishy, second-rate, shoddy, sleazy, trashy
inadequate, insufficient, lacking, meager (or meagre), mean, miserly, niggardly, scanty, shabby, short, skimp, skimpy, spare, stingy
miscreant, scurrilous, villainous
counterfeit, fake, phony (also phoney), sham
below par (or under), from hunger