outermost

American  

[au-ter-mohst, -muhst] / ˈaʊ tərˌmoʊst, -məst /

adjective

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

   the outermost limits.

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outermost British  

/ ˈaʊtəˌməʊst /

adjective

1. furthest from the centre or middle; outmost

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Etymology

Origin of outermost

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

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Example Sentences

See Examples For:

outermost

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

Unlike the water that falls from clouds on Earth, solar rain takes place in the Sun's corona, the outermost layer made of intensely hot plasma.

From Science Daily ● Oct. 15, 2025

By the outer wall, facing the western expanse of the sea, he and Ahmad chased a lone chicken through the ruins around the outermost homes.

From "Zeitoun" by Dave Eggers

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