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!"

Synonyms

• all right
• alright
• assuredly
• certainly
• clearly
• doubtless
• easily
• forsooth
• hands down
• inarguably
• incontestably
• incontrovertibly
• indeed
• indisputably
• plainly
• really
• so
• sure
• surely
• truly
• unarguably
• undeniably
• undoubtedly
• unquestionably

Examples of definitely in a Sentence

that is definitely the kind of dog we're looking to adopt

Recent Examples on the Web

But such a widespread embrace is definitely a big win for her. —Justin Curto, Vulture, 8 Nov. 2024

Xbox fans should definitely look into getting the gorgeous Razer Wolverine V2 Chroma. —Gabriela Vatu, PCMAG, 7 Nov. 2024

And there definitely was a party element to the occasion, with guests moving to the sounds of the DJ, performing line dances with pure joy. —Curtis Bunn, NBC News, 6 Nov. 2024

New states coming online with a 10% tax rate is definitely a preferred result for most sportsbooks. —Eben Novy-Williams, Sportico.com, 5 Nov. 2024

Word History

Etymology

definite + -ly entry 2

First Known Use

1574, in the meaning defined at sense 1

Video

How to Remember the Spelling of 'Definitely'

A definitive answer.