One of the mysteries of the English language finally explained.
Synonyms of expediency in English:
expediency
(also expedience)
See definition of expediency
noun
1‘he has abandoned his principles for the sake of political expediency’
SYNONYMS
convenience, advantage, advantageousness, usefulness, utility, benefit, profitability, profit, gain, gainfulness, effectiveness
practicality, pragmatism
prudence, judiciousness, desirability, suitability, advisability, appropriateness, appropriacy, aptness, fitness, timeliness, opportunism, propitiousness
ANTONYMS
disadvantage