halfhearted
adjectiveUK /ˌhɑːfˈhɑːtɪd/
US /ˌhæfˈhɑːrtɪd/
Doing something without really trying or caring much.
He gave a halfhearted wave as he walked away.
OTHER MEANINGS
2. Done without energy or real interest.
Her halfhearted attempt at cleaning left the room still messy.
3. Showing little care or effort.
The team's halfhearted play disappointed the fans.
4. Not sincere or wholehearted.
He offered a halfhearted apology that nobody believed.