# definitively

/dɪˈfɪnɪtɪvɫi/ (US) · /dɪfˈɪnɪtˌɪvli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/definitively
Updated: 2026-05-08

## Definition

in a way that is final and leaves no doubt. You use this when you want to say that a question is answered for good.

For teachers: in a manner that provides a final solution or conclusion; decisively and without doubt. Often modifies verbs related to proving, deciding, or establishing facts.

## Examples

- The test results definitively prove he is innocent.
- After years of debate, the new evidence definitively settled the question of the building's age.
- While the initial findings were promising, the research team cautioned that more data was required before they could definitively claim to have discovered a cure.

## Pitfalls

- Not "He is definitely better than her" but "He is definitively better than her" — Learners often confuse 'definitely' (certainly) with 'definitively' (conclusively/finally). Use 'definitively' when an action provides a final, authoritative conclusion.

## Usage notes

- Typically placed before the main verb or at the end of the clause to provide emphasis on the finality of an action.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.