Synonyms for "sophism": fallacy, deception, quibble, sophistry, casuistry, subtlety, trickery, artifice, delusion, error, misconception, illusion, hoax, ruse, stratagem, wile, scheme, ploy, dodge, evasion, pretext, cloak, mask, guise, semblance, appearance, show, affectation, posture, pretense, sham, imposture, deceit, fraud, guile, cunning, craft, ingenuity, intelligence, acumen, sagacity, wisdom, insight, understanding, knowledge, learning, erudition, scholarship, culture, refinement, taste, elegance, grace, style, flair, panache, aplomb, assurance, confidence, self-possession, composure, equanimity, serenity, tranquility, peace, calm, quiet, silence, void, nothingness, nonexistence, nihility, privation, absence, lack, want, deficiency, shortage, scarcity, paucity, dearth, insufficiency, inadequacy, imperfection, flaw, blemish, defect, fault, weakness, frailty, infirmity, ailing, sick, diseased, unwell, indisposed, afflicted, suffering, wretched, miserable, unhappy, sad, dejected, downcast, depressed, despondent, disconsolate, forlorn, bleak, grim, somber, dismal, dreary, cheerless, lifeless, inert, passive, inactive, stagnant, dormant, latent, potential, virtual, imaginary, fanciful, visionary, utopian, idealistic, impractical, unrealistic, fantastic, grotesque, bizarre, strange, odd, peculiar, unusual, abnormal, anomalous, irregular, eccentric, singular, unique, rare, uncommon, scarce, limited, few, meager, paltry, trifling, insignificant, trivial, petty, minor, secondary, subsidiary, auxiliary, ancillary, supplementary, accessory, incidental, contingent, conditional, provisional, tentative, subject, liable, prone, apt, likely, probable, possible, feasible, viable, tenable, defensible, justifiable, pardonable, venial, mortal, fatal, lethal, deadly, destructive, harmful, injurious, detrimental, deleterious, noxious, poisonous, toxic, virulent, malignant, baneful, ominous, portentous, ill-fated, damned, cursed, accursed, unholy, profane, sacrilegious, impious, irreligious, agnostic, skeptical, dubious, uncertain, unsure, insecure, anxious, worried, concerned, apprehensive, fearful, timid, cowardly, pusillanimous, craven, lily-livered, yellow-bellied, spineless, weak-kneed, flaccid, limp, pendulous, flabby, soft, tender, delicate, fragile, brittle, friable, rotten, putrid, rancid, contaminated, infected, tainted, adulterated, diluted, thin, attenuated, rarefied, subtle, fine, refined, polished, shining, bright, radiant, luminous, resplendent, glorious, splendid, magnificent, grand, stately, imposing, dignified, noble, virtuous, righteous, upright, honest, honorable, sincere, genuine, authentic, real, true, veritable, indubitable, unquestionable, incontrovertible, irrefutable, unimpeachable, unassailable, invincible, unconquerable, impregnable, invulnerable, impervious, resistant, immune, safe, secure, unharmed, untouched, unscathed, intact, whole, complete, perfect, flawless, unblemished, immaculate, spotless, pristine, unspoiled, undisturbed, untroubled, unruffled, unperturbed, unflustered, unshaken, unmoved, unaffected, inviolate, sacrosanct, hallowed, blessed, consecrated, revered, esteemed, acclaimed, celebrated, exalted, elevated, given, advanced, cultivated, developed, aged, vintage, classic, timeless, eternal, perennial, enduring, lasting, permanent, immortal, deathless, undying, unfading, imperishable, indestructible, unbreakable, unyielding, inflexible, rigid, stiff, hard, firm, solid, substantial.