af·fir·ma·tive /əˈfɝmətɪv/
 (a.)肯定的,正面的肯定語
 affirmative
 肯定
 Af·firm·a·tive a.
 1. Confirmative; ratifying; as, an act affirmative of common law.
 2. That affirms; asserting that the fact is so; declaratory of what exists; answering “yes” to a question; -- opposed to negative; as, an affirmative answer; an affirmative vote.
 3. Positive; dogmatic. [Obs.]
    Lysicles was a little by the affirmative air of Crito.   --Berkeley.
 4. logic Expressing the agreement of the two terms of a proposition.
 5. Alg. Positive; -- a term applied to quantities which are to be added, and opposed to negative, or such as are to be subtracted.
 Af·firm·a·tive, n.
 1. That which affirms as opposed to that which denies; an affirmative proposition; that side of question which affirms or maintains the proposition stated; -- opposed to negative; as, there were forty votes in the affirmative, and ten in the negative.
    Whether there are such beings or not, 't is sufficient for my purpose that many have believed the affirmative.   --Dryden.
 2. A word or phrase expressing affirmation or assent; as, yes, that is so, etc.
 ◄ ►
 affirmative
      adj 1: affirming or giving assent; "an affirmative decision";
             "affirmative votes"; "an affirmative nod"; "an
             affirmatory gesture" [syn: affirmatory] [ant: negative]
      2: expecting the best; "an affirmative outlook" [syn: optimistic]
      3: supporting a policy or attitude etc; "an affirmative
         argument" [syn: favoring]
      n : a reply of affirmation; "he answered in the affirmative"
          [ant: negative]