| English adjective: unattackable | |||
| 1. | unattackable immune to attack; incapable of being tampered with | ||
| Samples | An impregnable fortress. Fortifications that made the frontier inviolable. A secure telephone connection. | ||
| Synonyms | impregnable, inviolable, secure, strong, unassailable | ||
| Similar | invulnerable | ||
| Antonyms | vulnerable | ||