Neutral  —adj. 1 not supporting either of two opposing sides, impartial. 2 belonging to a neutral state etc. (neutral ships). 3 indistinct, vague, indeterminate. 4 (of a gear) in which the engine is disconnected from the driven parts. 5 (of colours) not strong or positive; grey or beige. 6 chem. Neither acid nor alkaline. 7 electr. Neither positive nor negative. 8 biol. Sexually undeveloped; asexual. —n. 1 a neutral state or person. B citizen of a neutral state. 2 neutral gear.  neutrality n. [latin neutralis of neuter gender]