doubtable

Adj

Capable of being doubted; doubtful; dubious; dubitable. See usage notes below.
Fearsome; redoubtable.

Origin / Etymology

From Middle English doutable, from Old French doutable, dotable, equivalent to doubt + -able.

Synonyms

Scrabble Score: 14

doubtable: valid Scrabble (US) TWL Word
doubtable: valid Scrabble Word in Merriam-Webster MW Dictionary
doubtable: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 18

doubtable: valid Words With Friends Word