fastest

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A form of fast — Firmly or securely fixed in place; stable.

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Meanings

adjective
  1. superlativesuperlative form of fast (adjective): most fast

    He set a new fastest time for running a mile.

    1 more example

    Scientists say it is one of the world’s fastest-melting glaciers.

    2018, VOA Learning English > China's Melting Glacier Brings Visitors, Adds to Climate Concerns
adverb
  1. superlativesuperlative form of fast (adverb): most fast
verb
  1. archaicindicativepresentsecond personsingularsecond-person singular simple present indicative of fast

    But thou, when thou fastest, anoint thine head, and wash thy face.

Synonyms & antonyms

adverbmost quickly

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quickest

Synonym sets from Open English WordNet, CC BY 4.0.

Rhymes & wordplay

Anagrams

Fassettsetfast
Cite this entry
APA

fastest. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/fastest

MLA

“fastest.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fastest. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “fastest,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/fastest.

Source: fastest on Wiktionary, CC BY-SA 4.0.