173 synonyms for sound such as bay, concept, blare, articulate, disease-free, able to pay its debts, authoritative, astute, deep, absolute, determine, canvass, canvass, (sea) passage, and arm (of the sea). Sound is a noun, and its antonyms are unhealthy, unsafe, and flimsy.
Concept, description, idea, impression, prospect, and thought.
Blare, blast, blow, chime, clang, ding, go (off), operate, peal, play, resonate, resound, reverberate, ring, set off, toll, toot, and wind.
Articulate, enounce, enunciate, pronounce, say, verbalize, vocalize, and voice.
Disease-free, durable, fit, hale and hearty, healthy, in fine fettle, in good condition, in good shape, in trim, intact, physically fit, solid, stable, stout, strong, sturdy, substantial, toned, undamaged, unimpaired, uninjured, well built, well constructed, and whole.
Able to pay its debts, creditworthy, debt-free, in credit, in funds, in the black, not in debt, of good financial standing, out of debt, secure, solid, solvent, and unindebted.
Authoritative, cogent, convincing, credible, logical, plausible, reasonable, reliable, solid, valid, weighty, well founded, and well grounded.
Astute, dependable, fair, good, intelligent, judicious, perceptive, percipient, reliable, sagacious, sensible, shrewd, trustworthy, and wise.
Deep, peaceful, unbroken, undisturbed, uninterrupted, and untroubled.
Absolute, complete, damn, downright, drastic, fair, out-and-out, proper, real, regular, right, right royal, royal, severe, thorough, thoroughgoing, total, unqualified, veritable, and without reserve.
Determine, fathom, gauge, investigate, measure, plumb, probe, survey, take a reading of, and test.
Canvass, interview, poll, pump, question, sample, see how the land lies, survey, test the opinions of, and test the water.
Canvass, carry out an investigation of, carry out research into, check, conduct a survey of, elicit, examine, explore, investigate, look into, probe, research, research into, and test.
(sea) passage, arm (of the sea), bay, branch, channel, creek, estuary, firth, fjord, inlet, narrows, neck, strait(s), stretch of water, voe, and waterway.