To disapprove is defined as to disagree with or be against something, or to express the fact that you are against something instead of in favor of it.(verb)
When you do not like your child's behavior and are against the way he or she is acting, this is an example of a time when you disapprove of the behavior.
See disapprove in Webster's New World College Dictionary
See disapprove in American Heritage Dictionary 4
verb dis·ap·proved, dis·ap·prov·ing, dis·ap·proves verb, transitive
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