1.
Not aligned with, supporting, or favoring either side in a war, dispute, or contest.
2.
Belonging to neither side in a controversy: on neutral ground.
3.
Belonging to neither kind; not one thing or the other; indifferent.
4.
Sexless; neuter.
5.
Chemistry. a. Of or relating to a solution or compound that is neither acidic nor alkaline. b. Of or relating to a compound that does not ionize in solution.
6. Physics. a. Of or relating to a particle, an object, or a system that has neither positive nor negative electric charge. b. Of or relating to a particle, an object, or a system that has a net electric charge of zero.
7. Color. Of or indicating a color, such as gray, black, or white, that lacks hue; achromatic.
8. Linguistics. Pronounced with the tongue in a middle position, neither high nor low, as the a in around.