halfhearted

• POS: Adjective
• HYPHEN: half=heart=ed

CIDE DICTIONARY

halfhearted, a. 

•  Wanting in heart or spirit; ungenerous; unkind.  B. Jonson.  [1913 Webster]
•  Lacking zeal or courage; performed with less than a full effort; lukewarm; unenthusiastic; as, a half-hearted attempt; -- of actions.  H. James.  [1913 Webster]

THESAURUS

halfhearted

Laodicean, bland, changeable, cold, cool, fervorless, indecisive, indifferent, infirm of purpose, infirm of will, insipid, irresolute, lukewarm, milk-and-water, milky, mushy, neuter, neutral, perfunctory, tasteless, tepid, unenthusiastic, vapid, watery, wishy-washy, zealless