i 1 n 1 d 2 e 1 f 4 a 1 t 1 i 1 g 2 a 1 b 3 l 1 e 1 n 1 e 1 s 1 s 1
17 letters · 24 points in Scrabble
Meaning
noun tireless determination
originEtymology tree English indefatigable Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English indefatigableness From indefatigable + -ness.
Etymology from Wiktionary, CC BY-SA 3.0