Definitions
1.AdjectiveSuitable to effect some desired end or the purpose intended."Most people, faced with a decision, will choose the most expedient option."
2.AdjectiveAffording short-term benefit, often at the expense of the long-term.
3.AdjectiveGoverned by self-interest, often short-term self-interest.
4.AdjectiveExpeditious, quick, rapid.
5.NounA method or means for achieving a particular result, especially when direct or efficient; a resource.