Synset

secret or hidden; not openly practiced or engaged in or shown or avowed
<adj.all>

sample sentences

"covert actions by the CIA"
"covert funding for the rebels"

lexical pointers

antonym

derivationally related form

semantic pointers

also see

implicit, inexplicit invisible, unseeable concealed

similar to

backstair, backstairs, furtive black secret, clandestine, undercover, cloak-and-dagger, hole-and-corner, hugger-mugger, hush-hush, surreptitious, underground secret collusive, conniving disguised, cloaked, masked secret sub-rosa, under-the-table, behind-the-scenes subterranean, subterraneous, ulterior under wraps undisclosed, unrevealed