unobserved

adjective

un·​ob·​served ˌən-əb-ˈzərvd 

: not noticed or perceived : not observed

The two vessels slipped out of Plymouth, unobserved by Spanish spies …

—Samuel Eliot Morison

A welcoming place is almost by definition someplace out of sight, someplace private and unobserved.

—Jane Kramer

Examples of unobserved in a Sentence

Recent Examples on the Web

One of the most impactful examples is our centralized telemonitoring system, which has contributed to a reduction in unobserved cardiac arrests by ensuring seamless interoperability between vital sign monitors and the telemonitoring center. —Daniel R. Depetris, Newsweek, 25 Mar. 2025

This hypothetical and currently unobserved risk of harm is greatly outweighed by the benefits transgender youth can gain from having a supportive community on sports teams. —Dr. Sean Patterson, Hartford Courant, 10 Feb. 2025

Previously unobserved graves, field systems, and other structures were also illuminated thanks to the drone. —Mack Degeurin, Popular Science, 8 Jan. 2025

That left the Kuril Islands as the most likely culprit—just near enough to obliterate Japanese crops and just far enough to remain unobserved. —Eli Wizevich, Smithsonian Magazine, 8 Jan. 2025

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for unobserved

• conserved
• decurved
• deserved
• incurved
• observed
• preserved
• recurved
• reserved
• subserved
• unnerved
• unserved
• curved