definitely
adverb
def·i·nite·ly
ˈde-fə-nit-lē
ˈdef-nət-
1
: in a definite way : in a way free of all ambiguity, uncertainty, or obscurity
I will definitely be there.
He's very smart and very funny and is definitely a practical actor. He comes to work to get his job done and to make the best movie possible …—Anna Kendrick
Omaha is definitely not hip; green-haired XML programmers do not glide past gourmet coffee emporiums on Razor scooters.—Adam Rogers
2
a
—used in speech as a forceful way of expressing agreement or saying "yes"
"Do you think they'll win?" "Definitely!"
b
—used in speech in the phrase definitely not as a forceful way of expressing disagreement or saying "no"
"Do you agree with him?" "Definitely not!"
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How to Remember the Spelling of 'Definitely'
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Cite this Entry
“Definitely.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/definitely. Accessed 2 Aug. 2026.
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