# invulnerable

/ˌɪnˈvəɫnɝəbəɫ/ (US) · /ɪnvˈʌlnəɹəbəl/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/invulnerable
Updated: 2026-10-13

## Definition

impossible to harm, damage, or defeat. You use this to describe someone who is so strong or well-protected that nothing can hurt them.

For teachers: impossible to harm, damage, or defeat. Often used to describe physical structures, military positions, or psychological states that are immune to external attack or influence.

## Examples

- The superhero felt invulnerable to any weapon.
- After winning ten matches in a row, the team felt invulnerable as they headed into the finals.
- The fortress was built on a high cliff, making it practically invulnerable to a ground assault, though it remained susceptible to a prolonged naval blockade.

## Usage notes

- Often used predicatively after linking verbs like 'feel', 'seem', or 'become'.

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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.