unannounced

British  

/ ˌʌnəˈnaʊnst /

adjective

1. not made known publicly or declared in advance

   an unannounced visit

---

Example Sentences

This small act of attention helps prevent the classic mid-recipe surprise: the unannounced overnight rest, the last-minute need for a tool you don’t own, the technique you wish you’d Googled earlier.

From Salon

The commission—the bloc’s executive arm—first started investigating the company in April last year and carried out unannounced inspections at its premises in Poland and the Netherlands.

From The Wall Street Journal

After Bell placed pleading calls to his uncle and grandmother in March 2023, relatives from both sides of the family traveled to L.A. unannounced.

From The Wall Street Journal

One Monday in mid-October, after a year in US immigration detention, officers arrived unannounced at Majid's cell in Texas.

From BBC

“Ventura County was one of the counties where unannounced audits occurred, and those findings reinforced the need for stronger compliance,” Nasarenko said.

From Los Angeles Times

Related Words

• undisclosed
• unheralded
• unpublished