invulnerable

adjective
UK /ɪnˈvʌlnərəbl/
US /ɪnˈvʌlnərəbl/

So strong or safe that nothing can hurt you.

The knight wore invulnerable armor that no sword could cut.


OTHER MEANINGS

2. Not able to be harmed by a particular danger or attack.

The fortress was invulnerable to arrows from below.

3. Not easily hurt by criticism or emotional pain.

She seemed invulnerable to their mean comments.

4. In games, unable to take damage for a short time.

After grabbing the star, the character became invulnerable for ten seconds.