feasible

adjective

there is only one feasible solution:

practicable, practical, workable, achievable, attainable, realizable, viable, realistic, sensible, reasonable, within reason, within the bounds of possibility;

useful, suitable, expedient, helpful, constructive;

informal doable, earthly;

rare accomplishable.

▷antonyms impractical.

there is only one feasible solution:

probable, likely, conceivable, imaginable, possible.

▷antonyms impossible.

feasible Oxford Dictionary of English