adjective

unopened

adjective

Still closed or sealed; not yet opened.

"A stack of unopened mail sat on the counter for weeks."

"He kept the gift unopened until his birthday."

How to Use Unopened

Learner’s notes

In plain EnglishStill sealed shut, never opened.

Common pairings

unopened letter unopened box leave unopened

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A stack of _____ mail sat on the counter for weeks.

From un- + opened.

opened awakened hardened darkened softened sickened weakened burdened loosened flattened sweetened sharpened