What is the adjective for secret?

Answer 1

Abstruse, ambiguous, arcane, backdoor, camouflaged, classified, cloak-and-dagger, close, closet, clouded, conspiratorial, covered, covert, cryptic, dark, deep, disguised, enigmatical, esoteric, furtive, hush-hush*, mysterious, mystic, mystical, obscure, occult, on the QT, out-of-the-way*, private, recondite, reticent, retired, secluded, shrouded, sly, strange, subtle, undercover, underground, under wraps*, undisclosed, unenlightened, unfrequented, unintelligible, unknown, unpublished, unseen, and veiled.

Answer 2

Secret *is* an adjective as well as a noun, as in "a secret society" and "they have a secret."

Answer 3

It is the same word, secret (something not shared, or confidential). The adjective forms may be secret (not revealed) or secretive (tending to keep secrets).

Answer 4

hidden