mercenary
Definitions
A professional soldier hired to serve in a foreign army.
Primarily concerned with making money at the expense of ethics.
Examples
The mercenary was hired to protect the convoy through the dangerous territory.
His decision to switch companies for a higher salary was purely mercenary.
The small kingdom relied on a band of mercenaries to defend its borders during the war.
Synonyms
hired gun soldier of fortune venal avaricious greedy materialistic money-oriented
Antonyms
altruistic selfless idealistic principled generous charitable volunteer