Synonyms of outer

outer

adjective

ˈau̇-tər 

as in exterior

situated on the outside or farther out

the outer edge of the blade of your figure skate always wears out faster than the inner because you use it more

Synonyms & Similar Words

• exterior
• outward
• external
• outside
• outermost
• surface
• outlying
• outmost
• superficial

Antonyms & Near Antonyms

• inner
• internal
• interior
• inside
• inward
• innermost
• middle
• mid
• inmost
• midmost

Example Sentences

Recent Examples of outer

Researchers developed LEDs that emit UVC at wavelengths below 235 nm, which is also absorbed by the outer, non-living layers of the skin. — Ameya Paleja, Interesting Engineering, 1 Oct. 2026

As a result, these solid outer layers can tilt and slide around the planet’s liquid inner core beneath as the planet works to redistribute its mass. — Jacek Krywko, Scientific American, 1 Oct. 2026

The skin barrier, the outer layer that holds water in, gets leakier with age, so moisture loss speeds up compared with your 30s. — Miami Herald, 1 Oct. 2026

Comfortably watching outer-court matches with a grounds pass has become more difficult than a decade ago. — Lev Akabas, Sportico.com, 29 Sep. 2026