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Added 3 October 2026

extensive

/ɪkˈstɛn.sɪv/ adjective

In Latin: extentus, effūsus Wiktionary

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about extensive at Wordnik → Where our words come from →

Having a great extent; covering a large area; vast.
Considerable in amount.
I have done extensive research on the subject.
Serving to extend or lengthen; characterized by extension.

Origin

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

From Wiktionary, via Kaikki.org (CC BY-SA)

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