wales is a form of:

Impregnable



adjective
1.
ដែលមិនអាចបដិសេធបាន, ដែលមិនអាចទប់តល់បាន impregnable fortress ដែលមិនអាចវាយយកបាន, impregnable argument ដែលបដិសេធចោលមិនបាន
ENGLISH MEANING
adjective
1.
Capable of being impregnated, as the egg of an animal, or the ovule of a plant.
2.
Not to be stormed, or taken by assault; incapable of being subdued; able to resist attack; unconquerable; as, an impregnable fortress; impregnable virtue.