Hypertext Webster Gateway: "invulnerable"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Invulnerable \In*vul"ner*a*ble\, a. [L. invulnerabilis: cf. F.
invuln['e]rable. See {In-} not, and {Vulnerable}.]
1. Incapable of being wounded, or of receiving injury.
Neither vainly hope To be invulnerable in those
bright arms. --Milton.
2. Unanswerable; irrefutable; that can not be refuted or
convinced; as, an invulnerable argument.
From WordNet (r) 1.7 (wn)
invulnerable
adj : immune to attack; impregnable; "gunners raked the beach from
invulnerable positions on the cliffs" [ant: {vulnerable}]
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