Synonyms of proper

1 Syllable

right, fairs, truest, apt, just, fit, goer, truer, true, prim, goest, fair, meet, neat, good

2 Syllables

lawful, correct, seemly, neater, special, modest, bullseye, legal, fitter, chaster, righting, congruous, prudish, able, jural, happy, righted, fitted, cleanlier, chastest, timeous, primmer, well-kept, blue-nose, suited, righter, cricket, washer, fitting, legit, apter, seemlier, decent, formal, honest, moral, neatest, old-line, rightful, fairer, fittest, meeter, aptest, fairest

3 Syllables

warhorse, rigorous, relevant, right-minded, principled, official, diacritic, timely, bluenose, expedient, qualified, timelier, watertight, precise, contractual, card-carrying, becoming, deserved, merited, peculiar, well-suited, befitting, desired, virginal, demurer, spic-and-span, orthodox, victorian, sedate, decorous, war-horse, puritan, strait-laced, capable, pertinent, convenient, conformant, ethical, beseeming, sure-enough, doctrinal, unfaked, useable, open-door, unboastful, regular, finicking, germane, apropos, punctilious, full-scale, straitlaced, suitable, competent, useful

4 Syllables

concedable, individual, formalistic, moralistic, respectable, providential, conformable, eligible, condonable, ladylike, vindicable, unforbidden, appropriate, allowable, all-purpose, permissible, veridical, precedented, warrantable, fair-to-middling, undistorted, monogamous, opportune, appurtenant, ceremonious, defensible, overmodest, conventional, remissible, admissible, distinctive, reasonable, felicitous, compatible, above-board, justifiable, equitable, applicable, self-effacing, unpretending, presentable, buttoned-down, accurate, unitary, enforcible

5 Syllables

unassertive, unprohibited, overconscientious, ultraprecise, characteristic, applicatory, reconcilable, well-established, legitimate

6 Syllables

ceremonialistic