expediency

1. (uncountable)The quality of being fit or suitable to effect some desired end or the purpose intended; suitability for particular circumstance or situation.

   Zweckmäßigkeit, Zweckdienlichkeit, Opportunität

   целесообра́зностьcelesoobráznostʹ

   доці́льністьdocílʹnistʹ

2. (uncountable)Pursuit of the course of action that brings the desired effect even if it is unjust or unprincipled.

3. (countable)An expedient.

4. (countable, obsolete, uncountable)Haste; dispatch.

regular