IPA: /ɪkˈspɛdiənt/
KK: /ɪkˈspidɪənt/
Suitable or appropriate for a particular purpose, often in a way that is self-interested or pragmatic rather than principled.
It may not be the best solution, but it is the most expedient one given the circumstances.
A method or tool used to achieve a specific goal, especially in a quick or temporary way.
Using a plastic bag as a rain cover was an expedient solution during the sudden downpour.
Expedient → It is formed from "ex-" (meaning out of or from) and "pedis" (from Latin "pes", meaning foot). The word "expedient" originally referred to a way of getting out of a situation or moving forward, as if finding a way to proceed on foot.
Think of finding a way 'out' ('ex-') to move 'forward' ('pedis') — that's why expedient means a means to achieve something effectively.