n. The quality of being expedient; fitness or suitableness to effect some desired end or the purpose intended; propriety or advisability under the particular circumstances of a case; advantageousness.n. That which is expedient or suitable; the proper or most efficient mode of procedure for gaining a desired end.n. Specifically, the principle of doing what is deemed most practicable or serviceable under the circumstances; utilitarian wisdom.n. An expedient.