1. having or showing no moral principles; not honest or fair

Examples

• The unscrupulous businessman cheated his customers out of thousands of dollars.
• She used unscrupulous methods to win the election.
• The company’s unscrupulous practices led to a major scandal.
• He was known as an unscrupulous lawyer who would do anything to win a case.
• The unscrupulous landlord refused to make necessary repairs.
• Many unscrupulous dealers sell fake artwork to unsuspecting buyers.