Definition of incongruous :
Not congruous; reciprocally disagreeing; not capable of harmonizing or readily assimilating; inharmonious; inappropriate; unsuitable; not fitting; inconsistent; improper; as, an incongruous remark; incongruous behavior, action, dress, etc.
ironic, agree, out or keeping, mismatched, unfitting, inept, twisted, malapropos, usual, dissonant, inconsonant, inharmonious, unpredictable, repugnant, incommensurable, unsuitable, inapt, like, lopsided, unbalanced, unconnected, unbefitting, inapposite, incoherent, ironical, inappropriate, unrelated, discordant, conflicting, contrary, incongruent, ill-matched, unseemly, unbecoming, unfit, loose, discrepant, disparate, irreconcilable, unapt, mismated
absurd (part of speech: adjective)
illogical, self-contradictory, contradictory, inane, impossible, preposterous, idiotic, fallacious, paradoxical, absurd, meaningless, invalid, ludicrous, anachronistic, stupid, senseless, nonsensical, silly, irrational, foolish, farcical, ridiculous, implausible
nonconforming (part of speech: adjective)
fey, quirky, curious, funny, uncustomary, bizarre, unusual, different, incompatible, inconsistent, unconventional, freakish, aberrant, un-ordinary, odd, divergent, off, crosspatch, crazy, misfit, deviant, outlandish, atypical, oddball, singular, novel, extraordinary, uncommon, deranged, oddity, queer, improper, anomalous, idiosyncratic, mismatch, strange, eccentric, nonconforming, out of the ordinary, untypical, erratic, unique, exceptional, abnormal, peculiar, irregular, unfamiliar
- Tears and Janet seemed so incongruous that Anne was honestly alarmed. - "Anne Of The Island", Lucy Maud Montgomery.
- The baron had seen and recognised David Arden, and a train of thoughts horribly incongruous with the sacred place was moving through his brain. - "Checkmate", Joseph Sheridan Le Fanu.
- Incongruous pictures from Europe. - "India and the Indians", Edward F. Elwin.