IPA: /ˈfɪr.ləs/
KK: /ˈfɪr.ləs/
Not afraid; showing courage and confidence in the face of danger or difficulty.
The fearless explorer ventured into the uncharted jungle without hesitation.
Comparative: more fearless
Superlative: most fearless
Fearless → It is formed from "fear" (from Old English "fǣr", meaning a feeling of anxiety or dread) and "-less" (meaning without). The word "fearless" means without fear or free from fear.
Think of being 'without' ('-less') a feeling of 'anxiety' ('fear') — that's why fearless means not feeling fear.