14 letters · 22 points in Scrabble
noun the property being difficult or impossible to defeat
originEtymology tree English indomitable Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English indomitability From indomitable + -ity.
Etymology from Wiktionary, CC BY-SA 3.0