unhelpable
/ʌnˈhɛlpəbəl/Definitions
1. adjective
Unable or unwilling to provide help, assistance, or support.
“The unhelpable attitude of the manager hindered the team’s morale.”
2. noun
A person who is unable or unwilling to provide help, assistance, or support.
“The unhelpable individual at the charity event struggled to make a difference.”