UNETHICAL definition: lacking moral principles; unwilling to adhere to proper rules of conduct. See examples of unethical used in a sentence.

The meaning of UNETHICAL is not conforming to a high moral standard : morally wrong : not ethical. How to use unethical in a sentence.

Add to word list not morally acceptable: unethical business practices (Definition of unethical from the Cambridge Academic Content Dictionary © Cambridge University Press)

Define unethical. unethical synonyms, unethical pronunciation, unethical translation, English dictionary definition of unethical. adj not ethical; improper: companies involved in unethical practices.

Definition of unethical adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Not morally approvable; morally bad; not ethical. The corporation was accused of unethical behavior for knowingly producing a product suspected of harming health. It would be unethical to conduct …

Because being unethical involves going against social or professional expectations of what's right, it's a word that's often used to describe bad behavior or immoral conduct.

If you describe someone's behaviour as unethical, you think it is wrong and unacceptable according to a society's rules or people's beliefs. It's simply unethical to promote and advertise such a dangerous …

Jan 14, 2026 · Adjective unethical (comparative more unethical, superlative most unethical) Breaching the established standards of conduct or behavior within a particular organization or profession. [20th …

Britannica Dictionary definition of UNETHICAL [more unethical; most unethical] : morally bad : not ethical unethical behavior/methods a medical procedure that she considers unethical