unjesuited
/ˌʌnˈdʒɛswɪtɪd/Definitions
1. adjective
Not having the qualities or skills needed for a particular task or situation.
“The team was unjesuited for the complex project and struggled to meet the deadline.”
2. noun
A person or thing that is not suited for a particular task or situation.
“The unjesuited player was replaced by a more experienced one in the game.”