extensionally

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adverb

In terms or by means of extension.

Opposite
intensionally
Scrabble 23
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Meanings

adverbextensionally (not comparable)
  1. not comparableIn terms or by means of extension.

    As a consequence of these two points, the burden would seem to be on the proponent of (MM) to defend the position that the two modalities are in fact extensionally equivalent, and only notionally distinct.

    2008 January 3, Anand Vaidya, “Modal Rationalism and Modal Monism”, in Erkenntnis, volume 68, number 2, →DOI

Synonyms & antonyms

Opposite
intensionally

Origin

From extensional + -ly.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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