'appreciative' definitions:

Definition of 'appreciative'

From: WordNet
adjective
Feeling or expressive of gratitude; "was appreciative of his efforts"; "an appreciative word"
adjective
Having or showing appreciation or a favorable critical judgment or opinion; "appreciative of a beautiful landscape"; "an appreciative laugh from the audience"

Synonyms of 'appreciative'

From: Moby Thesaurus