Synonyms of covert in English:

covert


See definition of covert

adjective

1‘a covert rescue mission at night’

SYNONYMS
secret, furtive, clandestine, surreptitious, stealthy, cloak-and-dagger, hole-and-corner, hole-in-the-corner, closet, behind-the-scenes, backstairs, back-alley, under-the-table, hugger-mugger, concealed, hidden, private
sly, sneaky, underhand
undercover, underground
black
informal hush-hush
ANTONYMS

overt, above board