14 letters · 19 points in Scrabble
adjective not easily destroyed
adjective very long lasting
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- English destruct Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ibilis Old French -ibleder. Middle English -ible English -ible English destructible English indestructible From in- + destructible.
Etymology from Wiktionary, CC BY-SA 3.0