immoral

violating principles of right and wrong

not adhering to ethical or moral principles

• “base and unpatriotic motives”
• “a base, degrading way of life”
• “cheating is dishonorable”
• “they considered colonialism immoral”
• “unethical practices in handling public funds”

morally unprincipled

• “immoral behavior”

characterized by wickedness or immorality

• “led a very bad life”

marked by immorality; deviating from what is considered right or proper or good

• “depraved criminals”
• “a perverted sense of loyalty”
• “the reprobate conduct of a gambling aristocrat”