Impregnably
Synonyms for Impregnably
- unassailable
- invulnerable
- unshakable
- indestructible
- secure
- strong
- well fortified
- well defended
- invincible
- unconquerable
- unbeatable
- indomitable
- enduring
- undefeatable
- conceptive
- inexpugnable
- unattackable
- inviolable
- impenetrable
- unapproachable
- stable
- resistant
- persistent
- unswerving
- unshakeable
- immovable
- steadfast
- unscalable
- forbidding
- inaccessible
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