Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
nonadaptive is an adjective meaning "(of a trait or condition) failing to serve an adjustive purpose". It carries one recorded sense.
(of a trait or condition) failing to serve an adjustive purpose
“dysfunctional behavior”
Definitions, synonyms and semantic relations for nonadaptive come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.