expedient
1. [ adjective ] serving to promote your interest
Examples:

"was merciful only when mercy was expedient"

Related terms: inexpedient advantageous opportunist convenient useful politic advantageous
2. [ adjective ] appropriate to a purpose; practical
Examples:

"in the circumstances it was expedient to express loyalty"

Related terms: politic
3. [ noun ] a means to an end; not necessarily a principled or ethical one
Related terms: means pis_aller crutch improvisation makeshift
Similar spelling:   expediently
  expediency
  expedience
  expedite
  expedited
  expedition
  expeditious