a·ver·sive (ə-vûr'sĭv, -zĭv) adj. Causing avoidance of a thing, situation, or behavior by using an unpleasant or punishing stimulus, as in techniques of behavior modification. a·ver'sive·ly adv., a·ver'sive·ness n.
Main Entry: aver·sive Pronunciation: &-'v&r-siv, -ziv Function: adjective : tending to avoid or causing avoidance of a noxious or punishingstimulus aversive conditioning> —aver·sive·lyadverb —aver·sive·nessnoun