- sound [adj1] complete, healthy alive and kicking*, effectual, entire, firm, fit, flawless, hale, hearty, intact, in the pink*, perfect, right, right as rain*, robust, safe, sane, solid, stable, sturdy, substantial, thorough, total, unblemished, undamaged, undecayed, unhurt, unimpaired, uninjured, up to snuff*, vibrant, vigorous, vital, well, well-constructed, whole, wholesome, wrapped tight*; concepts 314,488 —Ant. incomplete, infirm, unfit, unhealthy, unsound sound [adj2] logical, reasonable accurate, advisable, all there*, cogent, commonsensical, consequent, convincing, cool*, correct, deep, exact, fair, faultless, flawless, got it together*, impeccable, intellectual, judicious, just, levelheaded, orthodox, precise, profound, proper, prudent, rational, reliable, responsible, right, right-minded, right-thinking, satisfactory, satisfying, sensible, sober, solid, telling, thoughtful, together*, true, trustworthy, valid, well-advised, well-founded, well-grounded, wise; concepts 403,529,558 —Ant. illogical, unbelievable, unfathomable, unreasonable, unsound sound [adj3] accepted, established all there*, authoritative, canonical, dependable, fair, faithful, fly*, go*, hanging together*, holding together*, holding up*, holding up in wash*, holding water*, kosher*, legal, legit*, loyal, orthodox, proper, proven, received, recognized, reliable, reputable, safe, sanctioned, secure, significant, solid, solvent, stable, standing up*, tried-and-true*, true, valid, washing; concepts 535,552,582 —Ant. distrusted, refused, rejected sound [n] something heard or audible accent, din, harmony, intonation, loudness, melody, modulation, music, noise, note, pitch, racket, report, resonance, reverberation, ringing, softness, sonance, sonancy, sonority, sonorousness, static, tenor, tonality, tone, vibration, voice; concept 595 —Ant. silence sound [v1] produce noise babble, bang, bark, blare, blow, boom, burst, buzz, cackle, chatter, clack, clang, clank, clap, clatter, clink, crash, creak, detonate, echo, emit, explode, hum, jabber, jangle, jar, moan, murmur, patter, play, rattle, reflect, resonate, resound, reverberate, ring, roar, rumble, shout, shriek, shrill, sing, slam, smash, snort, squawk, thud, thump, thunder, toot, trumpet, vibrate, whine, whisper; concept 65 —Ant. quiet sound [v2] give the impression appear, appear to be, look, seem, strike as being; concepts 543,716
New thesaurus. 2014.