unscrupulous
Definitions
Having or showing no moral principles; not honest or fair.
Unrestrained by scruples; unprincipled.
Examples
The unscrupulous salesman tricked the elderly couple into buying a car that barely functioned.
She refused to work for an unscrupulous employer who regularly violated labor laws to increase profits.
Synonyms
unprincipled dishonest corrupt immoral deceitful ruthless dishonorable