outermost

adjective

out·​er·​most ˈau̇-tər-ˌmōst 

: farthest out

Synonyms of outermost

• farthest

Examples of outermost in a Sentence

The arrow hit the outermost ring on the target.

the outermost planet in our solar system

Recent Examples on the Web

Additionally, azelaic acid reduces keratin buildup in the skin’s outermost layer, helping dead skin cells shed more easily. — Kelsey Stewart, Allure, 18 Aug. 2026

One mode, called 3DMIRACL, runs about 10 to 15 minutes and touches only the outermost layer of skin. — Lyssanoel Frater, USA Today, 17 Aug. 2026

That light is the corona, the sun’s hot outermost atmosphere. — Claire Cameron, Scientific American, 13 Aug. 2026

Despite advances in science, the corona, or outermost part of the sun’s atmosphere, remains mysterious. — Matthew Cappucci, Washington Post, 9 Aug. 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for outermost

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

Kids Definition

outermost

adjective

out·​er·​most ˈau̇t-ər-ˌmōst 

: farthest out