Outermost

//ˈaʊtɚmoʊst// adj, noun

adj, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    That which is outermost.

    "Observe, the Analytical course is from outermosts to innermosts, from effects to causes […]"

Adjective
  1. 1
    superlative form of outer: most outer; farthest outside; as far from the center or inside as possible. form-of, superlative

    "He lived on the outermost edge of the city."

Adjective
  1. 1
    situated at the farthest possible point from a center wordnet

Synonyms

All synonyms
outerapparentcorticalepidermicexomorphicexterior

Example

More examples

"One night in 1572, Danish astronomer Tycho Brahe saw what he thought was a brilliant new star in the constellation Cassiopeia. (We now know he was observing a supernova.) In 1604, a second supernova was observed. These discoveries caused scientists to seriously question Ptolemy's theory that all stars were contained in an outermost sphere of the universe that never changed."

Etymology

From Middle English uttermost, uttirmest, uttermast, outemast, alteration (due to Middle English outre (“outer”)) of Old English ūtemest, ȳtemest (“outermost”), equivalent to outer + -most. Doublet of uttermost.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.