| lacking in interest or care or feeling | (usually followed by `to') unwilling or refusing to pay heed |
| not occupied or engaged with | characterized by a lack of partiality |
| easy in mind; not worried | fairly poor to not very good |
| | neither too great nor too little |
| | being neither good nor bad |
| | showing no care or concern in attitude or action |
| | (often followed by `to') lacking importance; not mattering one way or the other |
| | marked by a lack of interest |
| | having only a limited ability to react chemically; chemically inactive |
| | marked by no especial liking or dislike or preference for one thing over another |