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

That’s because new Fed Chair Kevin Warsh is likely to keep any insight about how close the Fed is to tightening its monetary policy under wraps, experts say.

From MarketWatch • Jul. 7, 2026

A chatty debrief on Taylor and Travis’ wedding: We have to hand it to Taylor Swift—it’s a real feat that she managed to keep many details of her Friday wedding to Travis Kelce under wraps.

From Slate • Jul. 6, 2026

Apart from what Swift's representative revealed, details about the event have been kept under wraps.

From BBC • Jul. 4, 2026

The trades were among the more than 21,000 moves by Trump’s investment accounts that were largely kept under wraps until a 900-page government disclosure filing this week.

From The Wall Street Journal • Jul. 2, 2026

By the late 1930s, both Elizebeth and William were keeping their working lives under wraps, but they still led a lively social life.

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