definitively
Americanadverb
Other Word Forms
Derived Forms
Etymology
Origin of definitively
Vocabulary lists containing definitively
Commonly Confused Words, List 2
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List 3
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List 8
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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 causes of endometriosis have left our best doctors and scientists totally flummoxed: no-one in the world knows definitively how and when it begins in a woman's body.
From BBC • Jun. 1, 2026
Despite our excitement, open theoretical questions remain that prevent us from definitively claiming that physics beyond the Standard Model has been observed.
From Science Daily • May 26, 2026
Though none of the photograph’s subjects have been definitively identified, many families have come forward believing that one of those iconic pairs of scuffed-up shoes belonged to their father, their great-great-uncle or other relation.
From The Wall Street Journal • May 22, 2026
They also noted that definitively proving who made these trades, and whether or not they were inspired by insider knowledge, would be difficult.
From MarketWatch • May 6, 2026
With the thrump of three car doors, Kathy was suddenly and definitively alone.
From "Zeitoun" by Dave Eggers
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.
