The Simple English Wikipedia has an article on: Inert gas Pronunciation (US) IPA (key): /ɪnˈɝt/ Audio (US)(file) Adjective Positive inert Comparative more inert Superlative most inert If something is inert, it is unable to move. (chemistry) If something is inert, it does not react with other elements or compounds.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads