The relation between propositions that cannot both be true at the same time.

synonyms: incompatibility, mutual exclusiveness, repugnance.

Roget 499: want of intelligence etc. 498, want of intellect etc. 450; shadowness^†, silliness, foolishness etc. adj.; imbecility, incapacity, vacancy of mind, poverty of intellect, weakness of intellect, clouded perception, poor head, apartments to let; stupidity, stolidity; hebetude^†, dull understanding, meanest capacity, shortsightedness; incompetence etc. (unskillfulness) 699.    one's weak side, not one's strong point; bias etc. 481; infatuation etc. (insanity) 503.    simplicity, puerility, babyhood; dotage, anility^†, second childishness, fatuity; idiocy, idiotism^†; driveling.    folly, frivolity, irrationality, trifling, ineptitude, nugacity^†, inconsistency, lip wisdom, conceit; sophistry etc. 477; giddiness etc. (inattention) 458; eccentricity etc. 503; extravagance etc. (absurdity) 497; rashness etc. 863.    act of folly etc. 699.    ... show more

Roget 24: disagreement; discord, discordance; dissonance, dissidence, discrepancy; unconformity etc. 83; incongruity, incongruence^†; discongruity^†, mesalliance; jarring etc. v.; dissension etc. 713; conflict etc. (opposition) 708; bickering, clashing, misunderstanding, wrangle.    disparity, mismatch, disproportion; dissimilitude, inequality; disproportionateness etc. adj.^†; variance, divergence, repugnance.    unfitness etc. adj.; inaptitude, impropriety; inapplicability etc. adj.; inconsistency, inconcinnity^†; irrelevancy etc. (irrelation) 10.    misjoining^†, misjoinder^†; syncretism^†, intrusion, interference; concordia discors [Lat.].    fish out of water.    ... show more

Roget 477: intuition, instinct, association, hunch, gut feeling; presentiment, premonition; rule of thumb; superstition; astrology^†; faith (supposition) 514.    sophistry, paralogy^†, perversion, casuistry, jesuitry, equivocation, evasion; chicane, chicanery; quiddet^†, quiddity; mystification; special pleading; speciousness etc. adj.; nonsense etc. 497; word sense, tongue sense.    false reasoning, vicious reasoning, circular reasoning; petitio principii [Lat.], ignoratio elenchi [Lat.]; post hoc ergo propter hoc [Lat.]; non sequitur, ignotum per ignotius [Lat.].    misjudgment etc. 481; false teaching etc. 538.    sophism, solecism, paralogism^†; quibble, quirk, elenchus^†, elench^†, fallacy, quodlibet, subterfuge, subtlety, quillet^†; inconsistency, antilogy^†; a delusion, a mockery, and a snare" [Denman]; claptrap, cant, mere words; lame and impotent conclusion" [Othello]. meshes of sophistry, cobwebs of sophistry; flaw in an argument; weak point, bad case.    overrefinement^†; hairsplitting etc. v.. ... show more

Roget 497: absurdity, absurdness etc. adj.; imbecility etc. 499; alogy^†, nonsense, utter nonsense; paradox, inconsistency; stultiloquy^†, stultiloquence^†; nugacity^†.    blunder, muddle, bull; Irishism^†, Hibernicism^†; slipslop^†; anticlimax, bathos; sophism etc. 477.    farce, galimathias^†, amphigouri^†, rhapsody; farrago etc. (disorder) 59; betise [Fr.]; extravagance, romance; sciamachy^†.    sell, pun, verbal quibble, macaronic^†.    jargon, fustian, twaddle, gibberish etc. (no meaning) 517; exaggeration etc. 549; moonshine, stuff; mare's nest, quibble, self-delusion.    vagary, tomfoolery, poppycock, mummery, monkey trick, boutade [Fr.], escapade.    ... show more

Dutch: tegenstrijdigheid
Polish: niezgodność

The quality of being inconsistent and lacking a harmonious uniformity among things or parts.

Dutch: inconsistentie
Polish: niespójność