i 1 n 1 c 3 o 1 n 1 t 1 r 1 o 1 v 4 e 1 r 1 t 1 i 1 b 3 l 1 y 4
16 letters · 26 points in Scrabble
Meaning
adverb in an obvious and provable manner
originEtymology tree English incontrovertible Middle English -ly English -ly English incontrovertibly From incontrovertible + -ly.
Etymology from Wiktionary, CC BY-SA 3.0