definitely

adverb

def·​i·​nite·​ly ˈde-fə-nit-lē How to pronounce definitely (audio)
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!"

Examples of definitely in a Sentence

that is definitely the kind of dog we're looking to adopt
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
What makes Kylie Jenner's glossy French nails so special and how to recreate them: A pastel pink is definitely one of the spring colors for 2025. Lena Raab, Glamour, 16 Mar. 2025 Seeing how the professional thing turned out, my following definitely grew. Tom Krasovic, San Diego Union-Tribune, 15 Mar. 2025 There’s also a lot of crossover among trends including using honey as a sweetener, meshing global flavors and definitely implementing more protein all within the granola category. Andrew Watman, Forbes, 15 Mar. 2025 Allen definitely deserved that money after winning NFL MVP last season and leading the Bills to their fifth consecutive division title. Mark Davis, Newsweek, 15 Mar. 2025 See All Example Sentences for definitely

Word History

Etymology

definite + -ly entry 2

First Known Use

1574, in the meaning defined at sense 1

Time Traveler
The first known use of definitely was in 1574

Cite this Entry

“Definitely.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/definitely. Accessed 22 Mar. 2025.

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