|Noah Webster's Dictionary|
1. (a.) Wanting in heart or spirit; ungenerous; unkind.
2. (a.) Lacking zeal or courage; lukewarm.
Half-hearted (2 Occurrences)
Hebrews 6:12 so that you may not become half-hearted, but be imitators of those who through faith and patient endurance are now heirs to the promises. (WEY)
James 4:8 Draw near to God, and He will draw near to you. Cleanse your hands, you sinners, and make your hearts pure, you who are half-hearted towards God. (WEY)