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Definition of definitively

definitively

/dɪˈfɪn.ɪ.tɪv.li/
de · fin · i · tive · ly
Adjective:definitive
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definitively Lexical Profile

definitively Game Scores & Validity

• adverb

1

In a decisive, conclusive, or authoritative manner that settles an issue finally and leaves no room for doubt.

Example

"The laboratory results definitively proved that the water supply had not been contaminated."

Synonyms
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Antonyms
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Word Nuance & Usage

Do not confuse 'definitively' (meaning conclusively, finally, or with complete authority) with 'definitely' (meaning certainly or without a doubt).

• Rhymes for definitively

• Nearby Words

definitional
definitionally
definitive
definitively
definitiveness
definitude
deflate

Cite this Entry

Wordmom. (2026). Definition of Definitively. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/definitively
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