Source : Webster's Revised Unabridged Dictionary (1913)

Appreciative \Ap*pre"ci*a*tive\, a.
   Having or showing a just or ready appreciation or perception;
   as, an appreciative audience. -- {Ap*pre"ci*a*tive*ly}, adv.

Source : WordNet®

appreciative
     adj 1: feeling or expressive of gratitude; "was appreciative of his
            efforts"; "an appreciative word"
     2: having or showing appreciation or a favorable critical
        judgment or opinion; "appreciative of a beautiful
        landscape"; "an appreciative laugh from the audience"