A covering or cover.
Secret, not spoken of (spoken of only in hushed whispers between insiders).
Accessible or known to authorized personnel only:
Kept within certain limits; limited:
Find another word for under-wraps. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for under-wraps, like: hidden away, buttoned-up, classified, covert, hush-hush, kept concealed, top-secret, with a lid on and restricted.