Synonyms of incompatible

1 Syllable

harsh

2 Syllables

agin, factious, counter, harshest, clashing, harsher, warring, jarring, scratchy, unfit, offbeat, squawky, scratchier

3 Syllables

inconstant, ill-suited, mismatched, adverse, discrepant, contrary, incongruous, opposed, incongruent, unsuited, conflicting, disagreeing, tuneless, repugnant, contrariant, alien, contrarient, dissonant, out-of-key, out-of-tune, discordant, unlike

4 Syllables

ill-equipped, uncongenial, unsuitable, inconsonant, unmusical, unadapted, inharmonic, disconsonant, antithetic, antipodal, disharmonious, incoherent, disparate, opposite, unharmonious, unmelodious, unmixable, inconsistent

5 Syllables

inadmissible, inappropriate, oppositional, antithetical, antipathetic, inconformable, unconformable, contradictory

6 Syllables

irreconcilable, unassimilable