neutral

(noun) one who does not side with any party in a war or dispute.

(adj) having no personal preference. Synonyms: impersonal. Examples: "Impersonal criticism." "A neutral observer."

(adj) having only a limited ability to react chemically; chemically inactive. Synonyms: inert, indifferent. Examples: "Inert matter." "An indifferent chemical in a reaction."

(adj) not supporting or favoring either side in a war, dispute, or contest.

(adj) possessing no distinctive quality or characteristics. Synonyms: neutral (vs. positive) (vs. negative).

(adj) having no hue. Synonyms: achromatic (vs. chromatic). Example: "Neutral colors like black or white."

(adj) lacking distinguishing quality or characteristics. Example: "A neutral personality that made no impression whatever."

(adj) having no net electric charge. Synonyms: electroneutral.