IPA: /ˌmæl.ædæpˈteɪ.ʃən/
KK: /mælædæpˈteɪʃən/
A situation where someone or something does not adjust well to their environment or circumstances, leading to problems or difficulties.
The maladaptation of the species to the changing climate resulted in a decline in their population.
Maladaptation → It is formed from "mal-" (meaning bad or ill) and "adaptation" (from Latin "adaptare", meaning to adjust or fit). The word "maladaptation" refers to an adjustment or change that is harmful or not suitable for the environment.
Think of 'mal-' meaning bad and 'adaptation' meaning adjustment — so maladaptation is an adjustment that is not good or fitting.