Immune to attack, incapable of being tampered with
English: impregnable, inviolable, secure, strong, unassailable, unattackable
strong, firm, impregnable, inviolable, long
From sal (…-i) · rare, #20,816
English: impregnable, inviolable, secure, strong, unassailable, unattackable
English: firm, strong
Bahasa: kuat, keras, erat, teguh, kental, kukuh, ulet, bagas
English: retentive, recollective, long, tenacious
Bahasa: lama, teguh, kokoh, ulet
Less certain link between this word and this sense.