adv

definitely

DEHF-ih-niht-lee

adv

Without any doubt; certainly.

"I will definitely be there by six."

"That is definitely the best pizza in town."

How to Use Definitely

Learner’s notes

In plain EnglishA stronger, more certain way of saying "yes" or "for sure."

When to use it

Very common in speech; in formal writing, plainer alternatives like "certainly" or simply stating the fact are often preferred.

more definitely comparative, most definitely superlative

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I will _____ be there by six.

From "definite" + the adverb-forming suffix "-ly."

by all means positively

very certainly positively negatively

Ely rely Neely comely lonely timely lovely homely widely lively lately rarely

by all means positively very certainly negatively