clandestine

adjective

clan·des·tine klan-�?de-stən

also -ˌstīn ,

or -ˌstēn,

or �?klan-də-

Synonyms of clandestine next

: marked by, held in, or conducted with secrecy : surreptitious

a clandestine love affair

clandestinely adverb

clandestineness noun

clandestinity

ˌklan-də-�?sti-nə-tē

-de-�?sti-

noun

Did you know?

Psst!—if your first instinct, upon being asked what you’ve been up to, is to clam up, your querier may suspect you’ve been involved in some clandestine activities. Clandestine often substitutes for secret and covert, and it is commonly applied to actions that involve secrecy maintained for an evil, illicit, or unauthorized purpose, as in "clandestine activities pursued under cover of night." It comes to English by way of Middle French, from the Latin word clandestinus, which is itself from the Latin adverb clam, meaning "secretly." Note that this clam is not the ancestor of the English word clam, despite how tightly sealed and thus secretive the bivalves may seem.

Choose the Right Synonym for clandestine

secret, covert, stealthy, furtive, clandestine, surreptitious, underhanded mean done without attracting observation.

secret implies concealment on any grounds for any motive.

met at a secret location

covert stresses the fact of not being open or declared.

covert intelligence operations

stealthy suggests taking pains to avoid being seen or heard especially in some misdoing.

the stealthy step of a burglar

furtive implies a sly or cautious stealthiness.

lovers exchanging furtive glances

clandestine implies secrecy usually for an evil, illicit, or unauthorized purpose and often emphasizes the fear of being discovered.

a clandestine meeting of conspirators

surreptitious applies to action or behavior done secretly often with skillful avoidance of detection and in violation of custom, law, or authority.

the surreptitious stockpiling of weapons

underhanded stresses fraud or deception.

an underhanded trick

Examples of clandestine in a Sentence

The clandestine meetings, the passing back and forth of messages between Lodge and the plotters, the coaxing along of the generals, all had the emotional lift of a strong amphetamine. —

Neil Sheehan, A Bright Shining Lie, 1988

The CIA's great innovation has been to concentrate in peacetime on 'covert action'—that is, the use of clandestine means to challenge policies and regimes in other countries. —

Arthur M. Schlesinger, Jr., The Cycles of American History, 1986

And Pym was in London for a conference—no, he wasn't, he was attending a three-day course on the latest methods of clandestine communication in a beastly little training house off Smith Square. —

John le Carré, A Perfect Spy, 1986

I took a clandestine peek at the price tag on the diamond necklace.

Recent Examples on the Web

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

The rocket's upper stage, meanwhile, continued carrying its clandestine satellites to orbit. —

Mike Wall, Space.com, 10 Jan. 2025 That looks set to continue with a new play from the veteran dramatist Howard Brenton set in 1942 and telling of a clandestine meeting at the Kremlin between Churchill and Stalin. —

Matt Wolf, New York Times, 3 Jan. 2025 Mister Parker's is dark and moody, perfect for clandestine meetings or a night out with friends. —

Catherine Garcia, theweek, 20 Dec. 2024 Samia shows up in London, allegedly to attend a conference, and Brandon rekindles their clandestine romance despite her suspicious security detail (A Real Pain�?s Kurt Egyiawan) sniffing about. —

David Fear, Rolling Stone, 30 Dec. 2024 See all Example Sentences for clandestine