under wraps

Idioms  

1. Concealed or secret, as in The design for the new plant is under wraps. This idiom frequently is put as keep under wraps, meaning “keep secret,” as in Let's keep this theory under wraps until we've tested it sufficiently. It alludes to covering something completely by wrapping it up. [1930s]

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Example Sentences

Cannes had kept the award under wraps until Travolta walked on stage for the premiere.

From Barron's • May 15, 2026

He has formed a superb partnership with the formidable Willian Pacho, who played a key role in keeping Kane under wraps until the England captain's strike in the dying seconds.

From BBC • May 6, 2026

Majestic says it has multiple customers lined up, representing hundreds of millions of dollars in revenue, starting in 2027, but declined to give any names because the deals are still under wraps.

From The Wall Street Journal • Apr. 28, 2026

While details about “The New One’s” story remain under wraps, the studio did offer attendees a glimpse of the film with a new trailer that pokes fun at the current state of the industry.

From Los Angeles Times • Apr. 16, 2026

They knew, none better, that the nation’s safety depended on keeping some things under wraps.

From "The Woman All Spies Fear" by Amy Butler Greenfield