unadapted to
Definitions
Not suited or fitted for a particular environment, purpose, or condition.
Lacking the necessary modifications or traits to function effectively in a specific context.
Examples
The tropical plants were completely unadapted to the harsh, freezing temperatures of the mountain climate.
Many employees felt unadapted to the new remote work software, leading to a significant drop in initial productivity.
Synonyms
unsuited for ill-fitted for incompatible with unprepared for unaccustomed to
Antonyms
adapted to well-suited for compatible with accustomed to prepared for