affirmative

adjective | \ ə-ˈfər-mə-tiv \ | af·fir·ma·tive

1. : asserting the existence of certain facts especially in support of a cause of action affirmative proof

2. : resulting from an intentional act affirmative concealment

3. : involving or requiring application of effort an affirmative duty

4. : favoring or supporting a proposition or motion an affirmative vote