Added 9 October 2026 deactivate /ˌdiːˈæktɪveɪt/ verb Categories: ActionsRare Words verb ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about deactivate at Wordnik → Where our words come from → to make something inactive or no longer effective deactivate an account to prevent the action of a biochemical agent (such as an enzyme) chemically deactivate to remove a person or piece of hardware from active military service Related Words: inactivateneutralizedecommissionneutralisedefusedeselectreleasekillinhibitinterruptuncheckclearing Back to today's word