Synonyms of austere

1 Syllable

hard, stiff, bleak, cold, harsh, strict, stern, grim

2 Syllables

sober, scoffing, unwrought, chaster, strictest, bleakest, earnest, prudish, grave, unhewn, chastest, cheerless, solemn, sterner, stringent, bleaker, rustic, somber, monkish, hardshell, formal, serious, grimmer, rigid, stricter, grimmest, spartan, sternest

3 Syllables

pitiless, rigorous, abstemious, continent, long-faced, astringent, onerous, unsmiling, ascetic, forbidding, oblate, monastic, severest, severer, sarcastic, virginal, passionless, satiric, unloving, unfeeling, exacting, abstinent

4 Syllables

unrelenting, weisenheiming, unhumorous, overtaxing, vinegary, atavistic, antisocial, monogamous, drearisome, obdurate, minimalist, iron-handed, deforested, uncompounded, unadorned, inflexible, unrelaxed, uncombined, unperfected

5 Syllables

inexorable, unpermissive, unalleviated, preliterate, nonliterate, unmitigated, unpopulated, puritanical, undecorated

6 Syllables

unelaborate