easternmost

American

[ee-stern-mohst, -muhst] / ˈi stərnˌmoʊst, -məst /

adjective

farthest east.

easternmost British

/ ˈiːstənˌməʊst /

adjective

situated or occurring farthest east

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of easternmost

First recorded in 1820–30; eastern + -most

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Those river systems and their surrounding basins also mark the westernmost and easternmost known distribution limits of the species described in the study.

From Science Daily • Apr. 21, 2026

Hundreds of soldiers deployed to assist the rescue services, while all Andalusian schools were closed apart from in the region's easternmost province of Almeria.

From Barron's • Feb. 4, 2026

Parts of the Front Range, the easternmost section of the Southern Rocky Mountains, saw winds as strong as 85 miles an hour blowing debris and kindling-dry brush against the power lines.

From The Wall Street Journal • Dec. 25, 2025

Observers in easternmost parts of Africa, in the Middle East, most of Asia and western Australia should be able to witness the entire event from start to finish.

From BBC • Sep. 5, 2025

Hawk Mountain is a picturesque mountaintop in southeastern Pennsylvania, where the easternmost ridges of the Appalachians form a last barrier to the westerly winds before dropping away toward the coastal plain.

From "Silent Spring" by Rachel Carson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023