Noun: halfheartedness
- The quality of lacking full commitment, enthusiasm, or effort
"His halfheartedness in completing the project was evident to his colleagues"
- Lack of passion, force or animation
"His half-heartedness in the project was evident to his colleagues";
- tepidness, lukewarmness
Type of: chilliness, coldness, coolness, frigidity, frigidness, iciness, partialness