8 letters · 11 points in Scrabble
adjective oblivious of dangers or perils or calmly resolute in facing them
adjective invulnerable to fear or intimidation
originEtymology tree English fear Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English fearless From fear + -less.
Etymology from Wiktionary, CC BY-SA 3.0