THESAURUS
oxymoron
Gordian knot, absurdity, ambiguity, ambivalence, antinomy, asymmetry, 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, no chance, node, nodus, nonconformability, nonconformity, nonplus, paradox, perplexity, pons asinorum, poser, puzzle, quandary, self-contradiction, teaser, the impossible, unconformability, unconformity, unimaginability, unorthodoxy, unthinkability, vexed question, what cannot be, what cannot happen
ROGET THESAURUS
oxymoron
Unintelligibility
N
unintelligibility, incomprehensibility, imperspicuity, inconceivableness, vagueness, obscurity, ambiguity, doubtful meaning, uncertainty, perplexity, spinosity, obscurum per obscurius, mystification, latency, transcendentalism, paradox,
oxymoron, riddle, enigma, puzzle, diagnus vindice nodus, sealed book, steganography, freemasonry, pons asinorum, asses' bridge, high Dutch, Greek, Hebrew, jargon, unintelligible, unaccountable, undecipherable, undiscoverable, unknowable, unfathomable, incognizable, inexplicable, inscrutable, inapprehensible, incomprehensible, insolvable, insoluble, impenetrable, illegible, as Greek to one, unexplained, paradoxical, enigmatic, enigmatical, puzzling (secret), indecipherable, obscure, dark, muddy, clear as mud, seen through a mist, dim, nebulous, shrouded in mystery, opaque, dense, undiscernible, misty, hidden, latent, indefinite, garbled, perplexed, undetermined, vague, loose, ambiguous, mysterious, mystic, mystical, acroamatic, acroamatical, metempirical, transcendental, occult, recondite, abstruse, crabbed, inconceivable, inconceptible, searchless, above comprehension, beyond comprehension, past comprehension, beyond one's depth, unconceived, inexpressible, undefinable, incommunicable, unpredictable, unforeseeable, it's Greek to me.