1. Feeling or showing little interest or enthusiasm
   "a halfhearted effort"
   - half-hearted, tepid, lukewarm

See also: half-heartedly, unenthusiastic

• bicorne
• bicorned
• bicornuate
• bicornuous
• bicultural
• bicuspid
• bicuspid valve
• bicuspidate
• bicycle
• bicycle chain
• bicycle clip
• bicycle pump
• bicycle race
• bicycle rack
• bicycle seat
• bicycle traffic
• bicycle wheel
• bicycle-built-for-two
• bicycler
• bicyclic
• bicycling
• bicyclist
• bicylindrical
• bid
• bid price