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Synonyms

outermost

American  
[ou-ter-mohst, -muhst] / ˈaʊ tərˌmoʊst, -məst /

adjective

  1. farthest out; remotest from the interior or center.

    the outermost limits.


outermost British  
/ ˈaʊtəˌməʊst /

adjective

  1. furthest from the centre or middle; outmost

"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 outermost

Middle English word dating back to 1350–1400; see origin at outer, -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.

The astronauts will then have the chance to study the solar corona, the outermost layer of the Sun's atmosphere, which will become visible as a sort of glowing halo.

From Barron's • Apr. 5, 2026

Past conflicts—due largely to a considerable lag between U.S. doctrine and technology—began with the outermost defensive ring and painfully worked toward the innermost ring of the capital, he wrote.

From The Wall Street Journal • Mar. 30, 2026

That’s when the star goes supernova, which we can detect as soon as the bounced off material breaks through the star's outermost layer — we call this the shock breakout.

From Space Scoop • Nov. 28, 2025

Greenland’s forbidding environment, at the outermost boundary of the European and North American world, have long made it one of the strangest places on earth.

From Salon • Dec. 29, 2024

The course at Griinau was six lanes wide, but the outermost two lanes—lanes five and six—were so exposed to the prevailing winds on the Langer See that they were at times all but unrowable.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

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