showing no enthusiasm or interest: half-hearted attempt He made a half-hearted attempt to clear up the rubbish. Efforts to address the problem were half-hearted. She gave only halfhearted support to my ideas. The team put in a rather half hearted performance.

Definition of half-heartedly adverb from the Oxford Advanced Learner's Dictionary half-heartedly adverb /ˌhɑːf ˈhɑːtɪdli/ /ˌhæf ˈhɑːrtɪdli/ without enthusiasm or effort