feeling or showing little interest or enthusiasm; "a halfhearted effort"; "gave only lukewarm support to the candidate"[syn: halfhearted ]

Lacking zeal or courage; lukewarm. --H. James.

adjective

enthusiastic

adjective

apathetic , cool , impassive , indifferent , irresolute , lackluster , listless , lukewarm , neutral , passive , perfunctory , spiritless , tame , tepid , unenthusiastic , uninterested