Impregnable and Rough

Impregnable adjective - Incapable of being defeated, overcome, or subdued.

Rough and impregnable are semantically related. In some cases you can use "Rough" instead an adjective "Impregnable".

Nearby Words: impregnate, impregnation, impregnated, impregnability, impregnating

Rough adjective - Covered with or as if with hair.

Impregnable and rough are semantically related. Sometimes you can use "Impregnable" instead an adjective "Rough".

Nearby Words: roughly, roughness, roughen, roughening, roughed