unsuitable
/ˌʌnˈsuːtəbəl/
adjective
Britannica Dictionary definition of UNSUITABLE
[more unsuitable; most unsuitable]
:
not having the qualities that are right, needed, or appropriate for something
:
not suitable
— unsuitability
/ˌʌnˌsuːtəˈbɪləti/
noun
[noncount]
— unsuitably
/ˌʌnˈsuːtəbli/
adverb