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clandestine

klan-DES-tin /klænˈdes.tɪn/

adjectiveC1GRESATCATUPSC

FormalJournalisticLiterary

Kept secret or done secretively, especially because illicit or unauthorized.

Emphasizes secrecy maintained specifically because an activity violates laws, regulations, or societal taboos.

The story behind the word. From French 'clandestin', directly from Latin 'clandestinus' (secret, hidden), derived from 'clam' (secretly, in secret). It entered English in the 16th century to describe secret political plots and forbidden courtships.

Word relationships

surreptitious: Surreptitious emphasizes sneaky physical movement, while clandestine emphasizes the forbidden or illegal nature of an enterprise.
covert: 'Covert' is standard military terminology for hidden operations, while 'clandestine' carries stronger connotations of illegality.

overt: Done openly and unconcealed.

Commonly confused with

surreptitious: Surreptitious describes sneaky behavior in the moment, whereas clandestine describes the inherently illegal or secret nature of an operation.

Word family

clandestinely (adverb): In a secret or clandestine manner.
clandestineness (noun): The state of being clandestine.

Collocations

clandestine meeting
clandestine operation
clandestine activity
clandestine radio

Example sentences

"Intelligence agencies uncovered a clandestine network smuggling illegal weapons across the border." Security intelligence briefing
"The lovers arranged clandestine meetings in the secluded garden after midnight." Historical romance novel

Memory hook

CLAN + DESTINY = A secret clan fulfilling its destiny in the shadows. Hidden in the shadows.

When not to use

Do not use to describe routine personal privacy or open administrative actions.

Fun facts

During World War II, European resistance forces operated 'clandestine presses' hidden in basements to distribute anti-Nazi news.