Eng

Not useful...

無用

Not useful, Useless

沒用

Didn't use, Don't use, Not useful, Useless

可行不通

Not feasible, Not useful, Won't work

(Feasible, Get nowhere, Gets, Getting nowhere, Got nowhere, Impracticable, No dice, To get, Unable to, Blocked, Illogical, Impassable, Non-sensical)