Suitable or efficient for accomplishing a purpose: thought email was the most expedient way to communicate with distant relatives. Convenient but based on a concern for self-interest rather than principle: changed his position when it was politically expedient. Obsolete Speedy; expeditious. Something that is a means to an end, especially when based on self-interest: compromised only as an expedient to boost his career. Something contrived or used to meet an urgent need: exhausted every expedient before filing a lawsuit.