(CHEMICAL CHARACTERISTIC) [adjective] [specialized] - not reacting chemically with other substancesGold is inert to the action of some acids which can dissolve other metals.Light bulb filaments break because they oxidize - replacing all the air with an inert gas would prevent this.
INERT
Meaning of INERT in English
Cambridge English vocab. Кембриджский английский словарь. 2012