unadaptable

/ˌʌnəˈdæptəbəl/
adjective
  1. Not able to change or adjust to new situations or environments.
    • He was unadaptable to the new software and preferred the old system.
    • The team found the rigid schedule unadaptable to their needs.
    • Some species are unadaptable to climate change and face extinction.
Antonyms
What does "unadaptable" mean? | whatsthatwordmean | whatsthatwordmean