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
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.
Seaport analyst Jay Goldberg sees Nvidia’s extensive investments as part of the company’s strategy to shield itself from growing competition.
From MarketWatch • May 22, 2026
Applicants are required to upload extensive personal information and documentation justifying their need for wider internet access.
From The Wall Street Journal • May 21, 2026
But after an extensive marketing campaign, Disney’s studio estimates now show audiences are younger, with more families and women represented.
From Los Angeles Times • May 21, 2026
The divers "are highly trained" and "conducted an extensive reconnaissance with us, and developed a conservative dive plan, considering that no one knew the cave well", Marroni said.
From Barron's • May 21, 2026
“Normally, you receive extensive training before you go into the field, but we’re in a pinch at the moment. There’s an operation in three weeks, and we find ourselves one person down.”
From "City Spies" by James Ponti
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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.