17 letters · 24 points in Scrabble
adjective exactly alike; incapable of being perceived as different
adjective not capable of being distinguished or differentiated
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English distinguish Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English distinguishable English indistinguishable From in- +…
Etymology from Wiktionary, CC BY-SA 3.0