deactivate

verb

de·​ac·​ti·​vate (ˌ)dē-ˈak-tə-ˌvāt 

deactivated; deactivating; deactivates

transitive verb

: to make inactive or ineffective

deactivate a bomb

deactivate a chemical compound

deactivation

(ˌ)dē-ˌak-tə-ˈvā-shən 

noun

deactivator

(ˌ)dē-ˈak-tə-ˌvā-tər 

noun

Synonyms

• kill
• shut off
• turn off

Examples of deactivate in a Sentence

deactivate the machine carefully, or you'll risk an electric shock

Recent Examples on the Web

Last year, the singer deactivated his X account after making a comment about Taylor Swift. —Emily Trainham, FOXNews.com, 10 May 2025

But last summer, LNG carriers traveling to Arctic LNG 2, which is run by Russia's energy giant Novatek, deactivated or spoofed their locations to allow shipments, according to maritime outlet Gcaptain.com. —Brendan Cole, MSNBC Newsweek, 1 May 2025

Some officers deactivated or muted their body cameras during the incident. —Topher Sanders, ProPublica, 14 Apr. 2025

The body camera was deactivated during the struggle, according to police, and does not show the moment Shurr shot Lyoya. —Deena Zaru, ABC News, 28 Apr. 2025

Word History

First Known Use

1926, in the meaning defined above

Rhymes for deactivate

• abbreviate
• accelerate
• accommodate
• accumulate
• acuminate
• adjudicate
• adulterate
• affiliate
• agglomerate
• agglutinate
• alleviate
• amalgamate

Kids Definition

deactivate

verb

de·​ac·​ti·​vate (ˈ)dē-ˈak-tə-ˌvāt 

: to make inactive or ineffective

deactivation

(ˌ)dē-ˌak-tə-ˈvā-shən 

noun

Medical Definition

deactivate

transitive verb

de·​ac·​ti·​vate (ˈ)dē-ˈak-tə-ˌvāt 

deactivated; deactivating

1

: to make inactive or ineffective

2

: to deprive of chemical activity

deactivate an enzyme

deactivation

-ˌak-tə-ˈvā-shən 

noun