# unsuccessfully

/ˌənsəkˈsɛsfəɫi/ (US) · /ʌnsəksˈɛsfəli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/unsuccessfully
Updated: 2026-05-07

## Definition

in a way that does not achieve the result you wanted. You use this when you try to do something but fail.

For teachers: in a manner that fails to achieve the desired outcome or objective.

## Examples

- He tried unsuccessfully to open the locked door.
- The rescue team searched the area unsuccessfully for three days before calling off the operation.
- The legal team argued unsuccessfully for a stay of execution, as the judge remained unconvinced by the new evidence presented during the emergency hearing.

## Pitfalls

- Not "He unsuccessfully in his attempt." but "He was unsuccessful in his attempt." — Learners often confuse the adverb 'unsuccessfully' with the adjective 'unsuccessful' after a linking verb.

## Usage notes

- Typically placed after the verb it modifies or at the end of the clause.

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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.