Impregnable mountains Synonyms

Impregnable replaced

invulnerable mountains

impenetrable mountains

safe mountains

impassable mountains

immovable mountains

Definitions for Impregnable

(adjective) incapable of being defeated, overcome , or subdued
(adjective) impossible to get through or into
(adjective) immune to attack; incapable of being tampered with

IM abbreviation

IM is an abbreviation for Impregnable Mountains

What does IM stand for?

IM stands for "Impregnable Mountains"