i 1 n 1 v 4 u 1 l 1 n 1 e 1 r 1 a 1 b 3 i 1 l 1 i 1 t 1 i 1 e 1 s 1
17 letters · 22 points in Scrabble
Meaning
noun having the strength to withstand attack
noun the property of being invulnerable; the property of being incapable of being hurt (physically or emotionally)