11 letters · 14 points in Scrabble
adjective not responsive to physical stimuli
adjective deficient in human sensibility; not mentally or morally sensitive
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English sensitive English insensitive From in- + sensitive.
Etymology from Wiktionary, CC BY-SA 3.0