1. showing poor judgment; not wise or sensible

Examples

• It would be unwise to drive in this heavy snow.
• She made an unwise decision to quit her job without having another one lined up.
• The coach thought it was unwise to play the injured athlete.
• It’s unwise to invest all your money in one stock.
• Many considered his unwise comments about the controversy damaging to his reputation.
• The unwise use of credit cards led to serious debt problems.