Synonyms of secret in English:

secret


See definition of secret

adjective

1‘they have a secret plan’

SYNONYMS
confidential, strictly confidential, top secret, classified, restricted, unrevealed, undisclosed, unpublished, untold, unknown, uncommunicated, behind someone's back, under wraps, unofficial, off the record, not for circulation, not for publication, not to be made public, not to be disclosed
sub rosa
informal hush-hush, mum
ANTONYMS

known, public

2‘there is a secret drawer in the table’

SYNONYMS
hidden, concealed
camouflaged, disguised
unnoticeable, invisible, inconspicuous
ANTONYMS

visible

3‘a secret operation to infiltrate terrorist groups’

SYNONYMS
clandestine, covert, undercover, underground, hidden, shrouded, conspiratorial, surreptitious, stealthy, cloak-and-dagger, hole-and-corner, closet
sneaky, sly, underhand, shifty, furtive
black
informal hush-hush
ANTONYMS

overt

4‘a secret message’

SYNONYMS
cryptic, encoded, coded, enciphered, hidden, mysterious, abstruse, recondite, arcane, esoteric, cabbalistic
ANTONYMS

open

5‘a secret place’

SYNONYMS
secluded, private, concealed, hidden, sheltered, undisturbed, unfrequented, solitary, lonely, sequestered, out of the way, remote, isolated, off the beaten track, tucked away, cut-off
ANTONYMS

known about, public

6‘he's a very secret person’

SYNONYMS
uncommunicative, secretive, unforthcoming, reticent, private, media-shy, taciturn, silent, non-communicative, quiet, tight-lipped, close-mouthed, close, playing one's cards close to one's chest, clamlike, reserved, introvert, introverted, self-contained, discreet
ANTONYMS

open, communicative, chatty


noun

1‘he just can't keep a secret’

SYNONYMS
confidential matter, confidence, private affair, skeleton in the cupboard
ANTONYMS

public knowledge

2‘the secrets of the universe’

SYNONYMS
mystery, enigma, problem, paradox, puzzle, conundrum, poser, riddle, question, question mark
ANTONYMS

known fact

3‘the secret of their success’

SYNONYMS
recipe, formula, blueprint, magic formula, key, answer, solution

Phrases

    in secret

    ‘groups of MPs met in secret over the summer’


    SYNONYMS

    secretly, without anyone knowing, in private, privately, in confidence, confidentially, behind closed doors, behind the scenes, behind someone's back, under cover, under the counter, discreetly, unobserved, quietly, furtively, stealthily, on the sly, on the quiet, privily, conspiratorially, covertly, clandestinely, on the side

    sub rosa, in camera

    informal

    on the q.t.

    ANTONYMS

    openly