Synonyms of unadapted

2 Syllables
factious, counter, clashing, warring, jarring, offbeat
3 Syllables
mismatched, inconstant, adverse, discrepant, contrary, incongruous, opposed, unsuited, conflicting, disagreeing, unfitted, discordant
4 Syllables
uncongenial, unsuitable, inconsonant, incompetent, antipodal, incoherent, disparate, opposite, inconsistent
5 Syllables
inadmissible, inappropriate, antithetical, antipathetic, incompatible, inconformable
6 Syllables
irreconcilable