westernmost

adjective

west·​ern·​most ˈwe-stərn-ˌmōst 

: furthest to the west

… wild species in the westernmost Amazon of Colombia and Ecuador.

—Richard Evans Schultes

The view in the photographs is near the western boundary of the westernmost county in Kansas …

—Thomas & Geraldine Vale

Examples of westernmost in a Sentence

Recent Examples on the Web

The westernmost sections on Northern Parkway, from Sarival Avenue to the Litchfield Road overpass, were completed in 2013 and 2015. —Lauren De Young, AZCentral.com, 11 Aug. 2025

The island of Guam, the westernmost U.S. territory, serves as a staging area to project military power against China. —Ryan Chan, MSNBC Newsweek, 1 July 2025

The advisory spans from Attu Island on the westernmost tip of the archipelago to Chignik Bay. —Aliss Higham, MSNBC Newsweek, 30 July 2025

An expansion into Idaho would mark the chain's westernmost location, which is currently positioned in Berthoud, Colorado. —Greta Cross, USA Today, 18 July 2025

Word History

First Known Use

1589, in the meaning defined above

Rhymes for westernmost

• diagnosed
• easternmost
• innermost
• lowermost
• milepost
• northernmost
• outermost
• rearmost
• southernmost
• uppermost
• uttermost
• almost