What does unjust mean?
Unjust describes something that is wrong because it violates principles of fairness, equality, or justice. It may characterize a person's decision, an action, a law, a social system, or the treatment of an individual or group. The word is especially common in legal, political, and ethical discussion, where it distinguishes between rules or actions that are merely undesirable and those that are genuinely unfair or oppressive. For example, describing discrimination as unjust identifies unequal treatment itself as morally or legally wrong, rather than merely inconvenient or poorly designed. Unjust is also often paired with laws, enrichment, treatment, and punishment. It is stronger and more explicitly moral than unfair, although the two words frequently overlap. Its clearest standard opposite is just, while fair and equitable provide related contrasts. The word is understood in both British and American English and is usually formal, though it can convey strong disapproval in ordinary conversation.
adjectiveWrong or unfair, especially because it is not based on justice, equality, or reasonable grounds.
- Unfair, wrong, or contrary to justice in a moral, social, or legal sense.
"The committee condemned the policy as unjust because it imposed burdens on one community without giving others an equal voice."
"The court ruled that the seizure of the tenant's property had been unjust."
"She described the unequal treatment of refugees as deeply unjust."
An unjust law can still be legal: legality asks whether a rule was followed, while justice asks whether the rule deserves obedience.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unjust come from?
Unjust was formed in English by adding the negative prefix un- to just. The word just came through Old French from Latin iustus, meaning “right, just, or upright.” Other English forms associated with the same Latin root include justice, justify, and adjust. Here, un- has its regular negating force, making unjust the opposite of just.
Related word forms
How unjust is actually used
The word is most common in formal, serious contexts, particularly in law, politics, history, and social justice. It is more explicitly moral in tone than unfair and can describe a decision, action, law, system, or form of treatment.
Easily confused with unjust
Unjust means contrary to justice or fairness, whereas unjustified means lacking adequate justification, which may be unrelated to whether something is fair.