What does unwise mean?
Unwise means lacking good judgment, prudence, or sound decision-making. It is commonly used to describe actions, decisions, or choices that carry unnecessary risk or are likely to lead to poor results. The word can apply to a deliberate mistake, as in an unwise investment, or to neglect of an obvious warning, as in ignoring safety advice. Unlike foolish, which may suggest a lack of intelligence or serious absurdity, unwise often focuses on the practical quality of a particular judgment. It can also imply that a course of action was ill-advised rather than inherently impossible. In formal writing, unwise is useful when a decision merits criticism without implying that the person making it was stupid. The related adverb unwisely describes how an action was performed, while the less common noun unwiseness refers to the quality of being poorly judged. In everyday use, unwise remains more restrained than reckless, which suggests a disregard for serious consequences.
adjectiveNot showing good judgment; lacking wisdom or prudence.
- Lacking good judgment or prudence; not advisable.
"It would be unwise to ignore the warnings from the authorities."
"Making such a large investment without adequate research was an unwise decision."
"The politician was unwise to attack the proposal before hearing its full details."
Adding “un” to wise turns a general virtue into a direct verdict on a choice that reveals poor judgment.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unwise come from?
Unwise is an English formation combining the negative prefix un- with the adjective wise. The adjective wise descends from Old English wīs, a Germanic word related to cognates in other Germanic languages, while the combined form unwise was in use by the late Middle English period. Its meaning has remained broadly stable: it denotes conduct or choices that lack sound judgment.
Related word forms
How unwise is actually used
Unwise is a neutral-to-formal alternative to foolish or unwise choices; it usually evaluates judgment or decision-making rather than intelligence or morality.