unopened

adjective

un·​opened ˌən-ˈō-pənd 

-pᵊmd

: not opened

unopened mail

an unopened window

a letter that was returned unopened

Examples of unopened in a Sentence

Recent Examples on the Web

According to the complaint, in late June 2026, an employee was allegedly ordered to open airline dish carts that had been left unopened inside the facility for an extended period of time. — Maureen O'Hare, CNN Money, 7 Aug. 2026

Slightly unopened sunflower blooms will last longer in a vase than fully open blooms. — Sheryl Geerts, Better Homes & Gardens, 3 Aug. 2026

An unopened bottle of hydrogen peroxide has a shelf life of around one year. — Mary Marlowe Leverette, The Spruce, 2 Aug. 2026

In her hand is an unopened envelope from a DNA testing company, containing the answer to whether Max was ever really her father. — Jp Mangalindan, Time, 31 July 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for unopened

• opened
• reopened