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extensive

adjectivecommon in dialogue

  • United States//ɪkˈstɛn.sɪv//
  • United States//ɛkˈstɛn.sɪv//
  • Canada//ɪkˈstɛn.sɪv//
  • Australia//ɪkˈsten.sɪv//

Having a great extent; covering a large area; vast.

adjective

  1. 1

    Having a great extent; covering a large area; vast.

    In the second century of the Christian era, the Empire of Rome comprehended the fairest part of the earth, and the most civilised portion of mankind. The frontiers of that extensive monarchy were guarded by ancient renown and disciplined valour.

  2. 2

    figurativeConsiderable in amount.

    I have done extensive research on the subject.

  3. 3

    Serving to extend or lengthen; characterized by extension.

    For station is properly no rest, but one kind of motion, relating unto that which physicians (from Galen) do name extensive or tonical; that is, an extension of the muscles and organs of motion, maintaining the body at length, or in its proper figure.

  4. 4

    Having a combined system entropy that equals the sum of the entropies of the independent systems.

    According to Tsallis (1988), the entropy was extensive for T = 1, superextensive for t < 1 and subextensive for t > 1.

Etymology

From late Middle English, borrowed from Late Latin extensīvus, from Latin extensus.

Forms

comparative
more extensive
superlative
most extensive
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).