List of solid synonyms and solid related words.
OK, a certain, abiding, able to pay, ace-high, adamantine, agreeing, an, any, any one, appreciable, at one, at one with, atomic, authentic, authoritative, bad, balanced, bang-up, binding, blank, block, body, bony, bonzer, boss, bristling, bulky, bully, but good, cake, calculable, carried by acclamation, cement, cemental, changeless, chock-full, close, close-knit, close-textured, close-woven, clump, cluster, cogent, compact, compacted, complete, compressed, concentrated, concordant, concrete, concretion, concurrent, condensed, congested, conglomerate, conglomeration, consentaneous, consentient, consistent, consolidated, constant, continuing, continuous, convincing, cool, corking, corneous, crackerjack, crammed, crammed full, crawling, crowded, cubic, dandy, decent, delicious, dense, dependable, developed, diamondlike, downright, ducky, durable, dure, dynamic, effective, either, enduring, entire, estimable, exclusive, fab, faithful, faithworthy, fast, fiducial, fine and dandy, firm, firm as Gibraltar, firmly, fixed, flintlike, flinty, forceful, frozen, full, full-fledged, full-grown, full-scale, gear, genuine, global, gluey, good, good for, granitelike, granitic, great, groovy, hard, hard as nails, hardhearted, hardly, heavy, homogeneous, honest-to-God, horny, hot, hunky-dory, immobile, immutable, impenetrable, impermeable, imperturbable, in agreement, in equilibrium, incontestable, incontrovertible, indisputable, individual, indivisible, infrangible, intact, integral, intensive, invincible, inviolate, iron-hard, ironlike, irreducible, irrefutable, jam-packed, jam-up, jammed, just, just dandy, keen, knot, lapideous, lasting, law-abiding, lawful, legal, legitimate, like-minded, lithoid, lithoidal, logical, lone, lump, made of iron, marble, marblelike, marvy, mass, massive, material, mature, matured, mean, mighty, monadic, monistic, neat, nifty, nobby, node, nonporous, obdurate, of a piece, of one accord, of one mind, okay, one, osseous, out of sight, packed, palpable, peachy, peachy-keen, permanent, perpetual, persistent, persuasive, ponderable, populous, potent, powerful, predictable, provable, proved, pure, quiescent, rational, real, reasonable, regular, reliable, remaining, resistant, resistive, rigid, ripe, ripping, rocklike, rocky, rugged, rum, satisfactory, satisfying, scrumptious, secure, self-consistent, sensible, serried, simple, single, singular, slap-up, smashing, sober, sole, solid body, solidly, solitary, solvent, something else, sound, spiffing, spiffy, stable, stalwart, static, stationary, staunch, staying, steadfast, steady, steellike, steely, stonelike, stony, stout, straight, strong, stunning, sturdy, substantial, substantive, sufficient, sure, surefire, sustained, swarming, swell, tangible, teeming, telling, thick, thick-growing, thickset, thorough, three-dimensional, through-and-through, torpid, total, tough, true, true-blue, trustworthy, trusty, unabbreviated, unadulterated, unalloyed, unaltered, unanalyzable, unanimous, unbreakable, unbroken, unchallenged, unchangeable, unchanged, unchanging, unchecked, uncontested, uncontradicted, uncontroverted, uncut, undestroyed, undiminished, undivided, unexpurgated, unfading, unfailing, unflappable, unflinching, uniform, unindebted, uninterrupted, unique, unitary, unmixed, unopposed, unrelieved, unshakable, unshakeable, unshaky, unshifting, unvaried, unvarying, unwavering, unyielding, upright, upstanding, valid, vigorous, viscid, viscose, viscous, weighty, well-balanced, well-built, well-constructed, well-founded, well-grounded, well-made, whole, with one consent, with one voice, without nerves, wizard, worthy