Proactive/ˌprəʊˈæktɪv/ Definition 1 of 2Pro Tip 1/3Action-Oriented Proactive implies taking initiatives before problems arise. She was proactive in learning the material before the lecture. Pro Tip 2/3Positive Connotation 'Proactive' often suggests a commendable or positive approach to situations. His proactive nature made him a favorite among his peers. Pro Tip 3/3Responsibility Being proactive means taking responsibility for one's actions ahead of time. The proactive student asked for extra homework to improve.