extensive
Americanadjective
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an extensive area.
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covering or extending over a great area.
extensive travels.
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far-reaching; comprehensive; thorough.
extensive knowledge.
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an extensive journey.
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great in amount, number, or degree.
an extensive fortune; extensive political influence.
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of or having extension.
Space is extensive, time durational.
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noting or pertaining to a system of agriculture involving the use or cultivation of large areas of land with a minimum of labor and expense (opposed to intensive).
adjective
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having a large extent, area, scope, degree, etc; vast
extensive deserts
an extensive inheritance
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widespread
extensive coverage in the press
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agriculture involving or farmed with minimum expenditure of capital or labour, esp depending on a large area of land Compare intensive
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physics of or relating to a property, measurement, etc, of a macroscopic system that is proportional to the size of the system Compare intensive
heat is an extensive property
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logic
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of or relating to logical extension
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(of a definition) in terms of the objects to which the term applies rather than its meaning
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Other Word Forms
Derived Forms
Etymology
Origin of extensive
First recorded in 1375–1425; late Middle English, from Late Latin extēnsīvus, equivalent to Latin extēns(us) (past participle of extendere “to stretch out”) + -īvus adjective suffix; see extend, -ive
Explanation
When something is far-reaching or expansive it is extensive. When your friend knows every single place and time that his favorite band has played any given song, he has extensive knowledge of that band. Use the adjective extensive for something that goes on and on and on. It works for anything that covers a lot of territory either in physical space, as in "the gardens at the palace are extensive," or conceptually, as in "her knowledge of the mortgage-backed securities market is extensive." If you are a farmer, you would also use extensive to mean that you are able to work a lot of land without too much effort or manual labor.
Vocabulary lists containing extensive
Hatchet
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List 8
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A Christmas Carol
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The company’s extensive late-stage program highlights its ambitions for the drug, both as a standalone treatment and in combination with other medicines, the analysts say.
From The Wall Street Journal • Jun. 9, 2026
A former PulteGroup board member told the Detroit Free Press in 2021 that many board members “didn’t think his experience was extensive enough” when his grandfather installed Pulte on the board.
From Salon • Jun. 9, 2026
Following those findings, Roscosmos decided on Friday morning to prepare for a more extensive inspection and structural repair effort.
From Science Daily • Jun. 8, 2026
Today, Realtor.com estimates the property is worth well above $13.4 million—and that’s without the inclusion of Williams’ extensive updates.
From MarketWatch • Jun. 8, 2026
The analysis of the remains, conducted by researchers from Cardiff University, the Mary Rose Trust, and the British Geological Survey, were among the most extensive ever undertaken.
From "Shipwrecked!" by Martin W. Sandler
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
