IPA: //ˌʌn.əˈdæp.tɪd//
KK: /ʌnəˈdæptɪd/
Not changed or adjusted to fit a new situation or environment.
The unadapted species struggled to survive in the new habitat.
Unadapted → It is formed from "un-" (meaning not) and "adapted" (from Latin "adaptare", meaning to fit or adjust). The word "unadapted" means not fitted or adjusted to a particular situation or environment.
Think of 'not' ('un-') being added to 'fitting' or 'adjusting' ('adapted') — that's why unadapted means something that is not adjusted to fit.