inutile

adjective

in·​utile (ˌ)in-ˈyü-tᵊl 

-ˌtī(-ə)l

: useless, unusable

inutility

ˌin-yü-ˈti-lə-tē 

noun

Word History

Etymology

Middle English, from Anglo-French, from Latin inutilis, from in- + utilis useful — more at utility

First Known Use

15th century, in the meaning defined above