halfhearted

adj

1. Lacking full energy, effort, commitment, or resolve.

   “Near-synonym: half-assed”

   “He made a halfhearted attempt to read the chapter before giving up and dozing off.”

   “There were chants against the domestic league's president Dumitru Dragomir and also a half-hearted two-man pitch invasion by Universitatea Craiova fans protesting at the expulsion of their club from the league.”

2. (obsolete)Lacking in heart or beneficence; ungenerous; unkind.

   “such animals, Half-hearted creatures, as these are, your fox there”