deter

Synonyms: act like a wet blanket avert block caution chill cool damp dampen daunt debar disadvise discourage dissuade divert forestall forfend frighten hinder impede intimidate obstruct obviate preclude prevent prohibit put a damper on put off restrain rule out scare shut out stave off stop talk out of throw cold water on turn off warn

Antonyms: encourage instigate persuade promote put on to stimulate support turn on urge