Dehortative means to discourage someone from doing something or to advise against a particular action. Synonyms for this word include dissuasive, admonitory, cautionary, warning, and deterrent. A dissuasive approach is designed to change a person's mind or behavior, while an admonitory tone is used to express disapproval or rebuke. A cautionary word or warning is intended to alert someone to potential danger or risk, while deterrents are things designed to prevent certain behavior. When used appropriately, dehortative language can be effective in preventing people from taking foolish or dangerous actions.