Feasible vs Usefull - What's the difference?

As adjectives the difference between feasible and usefull

is that feasible is that can be done in practice while usefull is .

(en adjective)

That can be done in practice.

His plan to rid Trafalgar Square of pigeons by bringing in peregrine falcons to eat them was dismissed as not feasible .

* achievable * doable * possible * practicable * workable

* infeasible, unfeasible

(head)