Answer: doubtful

AnswerCrossword Clue
DOUBTFULNot at all likely
DOUBTFULUncertain
DOUBTFULHard to believe
doubtfula person who has doubts
doubtfulNot known with certainty
doubtfulNot established as genuine or acceptable
doubtfulFeeling uncertain about something
doubtfulImprobable