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Synonyms and Antonyms of solid

  1. 1 based on sound reasoning or information <the only solid conclusion that the jury could have reached> Synonyms commonsense, commonsensible, commonsensical, firm, hard, informed, just, justified, levelheaded, logical, rational, reasonable, reasoned, sensible, sober, good, valid, well-foundedRelated Words actual, real, true; certain, sure; certified, validated, verified; confirmed, corroborated, substantiated; cogent, convincing; colorable, credible, plausibleNear Antonyms unsubstantiated, unsupported, unwarranted; flimsy, implausible, unconvincing, weak; fallacious, false, misguided, misledAntonyms groundless, illogical, invalid, irrational, nonrational, nonsensical, nonvalid, unfounded, uninformed, unjustified, unreasonable, unreasoned, unsound

  2. 2 having a consistency that does not easily yield to pressure <the ice cream is too solid to scoop right now> Synonyms compact, hard, rigid, firm, stiff, unyieldingRelated Words case-hardened, compacted, compressed, hardened, indurated, stiffened, tempered; close, dense, heavy, thick, thickset; inelastic, inflexible, ramrod, unbending; compressed, condensed; adamantine, rocklike; sturdy, substantial; impenetrable, impermeable, nonporousNear Antonyms loose, scattered, thin; bendable, elastic, flexible, malleable, pliable, pliant, supple; droopy, flaccid, floppy, lank, limp, slack; airy, light; permeable, porous; ultrasoftAntonyms flabby, soft, spongy, squashy, squishy

  3. 3 having or consisting of a single color <both kittens are black, but one has a solid coat and the other has a few white patches> Synonyms monochrome, monochromic, self, self-colored, monochromaticRelated Words achromatic, neutralNear Antonyms dappled (also dapple), marbled, shaded; mottled, parti-color (or parti-colored), piebald, pied, pinto, skewbald; banded, barred, brindled (or brindle), streaked, striated; checkered, dotted, patterned, plaid, striped; flecked, specked, speckled, spotted; bichrome, bicolored (or bicolor), dichromatic, trichromatic, tricolor (or tricolored), two-toneAntonyms chromatic, colorful, kaleidoscopic, motley, multicolored, polychromatic, polychrome, rainbow, varicolored, varied, variegated

  4. 4 not showing weakness or uncertainty <some people see a solid handshake as a sign of strong character> Synonyms forceful, hearty, iron, lusty, robust, firm, stout, strong, sturdy, vigorousRelated Words hard, ironclad, mighty, powerful, tough, unyielding; animated, brisk, energetic, frisky, jaunty, jazzy, lively, peppy, perky, spirited, sprightful, sprightly, springy, vital, vivacious, zippy; assured, certain, confident, sanguine, secure, sureNear Antonyms feeble, fragile, frail; limp, listless, spiritless; diffident, insecure, self-doubting; characterless, effete, frail, spineless, weakened, weak-kneed, wimpy, wishy-washyAntonyms uncertain, weak

  5. 5 worthy of one's trust <a solid source of information to reporters> Synonyms calculable, good, reliable, responsible, safe, secure, dependable, steady, sure, tried, tried-and-true, true, trustable, trustworthy, trustyRelated Words constant, devoted, faithful, fast, loyal, staunch (also stanch), steadfast, true-blue; honest, sincere, single-minded; infallible, unerring; bedrock, firm, sound, strong; effective, telling; attested, authenticated, confirmed, proven, valid, validated, verified; blameless, faultless, guiltless, impeccable, inerrant, irreproachable, unimpeachable, unquestionableNear Antonyms disloyal, faithless, false, fickle, inconstant, perfidious, recreant, traitorous, treacherous, unfaithful, untrue; deceitful, dishonest, lying, mendacious, untruthful; debatable, disputable, doubtable, doubtful, dubious, fishy, problematic (also problematical), questionable, shady, shaky, suspect, uncertain, unsound; hazardous, risky; unconfirmed, untriedAntonyms dodgy [chiefly British], uncertain, undependable, unreliable, unsafe, untrustworthy

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