1. (logic) a statement that contradicts itself
; - Example: "`I always lie' is a paradox because if it is true it must be false"
The Collaborative International Dictionary of English v.0.48:
paradox \par"a*dox\ (p[a^]r"[.a]*d[o^]ks), n.; pl. paradoxes
(p[a^]r"[.a]*d[o^]ks*[e^]z). [F. paradoxe, L. paradoxum, fr.
Gr. para`doxon; para` beside, beyond, contrary to + dokei^n
to think, suppose, imagine. See Para-, and Dogma.]
A tenet or proposition contrary to received opinion; an
assertion or sentiment seemingly contradictory, or opposed to
common sense; that which in appearance or terms is absurd,
but yet may be true in fact.
A gloss there is to color that paradox, and make it
appear in show not to be altogether unreasonable.
This was sometime a paradox, but now the time gives it
Hydrostatic paradox. See under Hydrostatic.
Moby Thesaurus II by Grady Ward, 1.0:
57 Moby Thesaurus words for "paradox":
Gordian knot, absurdity, ambiguity, ambivalence, antinomy,
asymmetry, contradiction, crux, dilemma, disproportion,
disproportionateness, enigma, equivocality, equivocation, heresy,
heterodoxy, heterogeneity, hopelessness, impossibility, impossible,
impossibleness, incoherence, incommensurability, incompatibility,
inconceivability, incongruity, inconsistency, inconsonance, irony,
irreconcilability, knot, knotty point, mystery, no chance, node,
nodus, nonconformability, nonconformity, nonplus, oxymoron,
perplexity, pons asinorum, poser, problem, puzzle, quandary,
self-contradiction, teaser, the impossible, unconformability,
unconformity, unimaginability, unorthodoxy, unthinkability,
vexed question, what cannot be, what cannot happen