sound (redirected from friction sound)

sound adjective accurate, acknowledged, admitted, cogent, compelling, convincing, correct, credible, effective, effectual, efficacious, factual, forceful, incontrovertible, irrefutable, justified, legitimate, persuasive, potent, powerful, proven, right, rightful, scientific, solid, strong, substantial, true, truthful, unanswerable, unchallengeable, unconfutable, undisputable, undistorted, unexaggerated, unimagined, unimpeachable, veracious, veritable, weighty, well-founded, well-grounded
Associated concepts: sound discretion, sound value

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See also: authentic, cogent, communicate, credible, defensible, discriminating, durable, fiduciary, firm, fixed, honest, incontestable, indomitable, intact, intonation, inviolate, judicious, juridical, justifiable, legitimate, licit, logical, lucid, meritorious, noise, normal, persuasive, phrase, plausible, positive, pragmatic, pronounce, rational, reasonable, reliable, rightful, safe, sane, scrupulous, secure, sensible, speak, stable, staunch, strong, thorough, true, unblemished, undeniable, utter, valid, viable