Doubtful is valid Scrabble Word

Is doubtful a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is doubtful valid Words with Friends?
Words with Friends YES

Definitions for DOUBTFUL in dictionary:

Words related to DOUBTFUL

doubtfully19 doubtfulness18 doubtfuls15 unlikely15

How to use DOUBTFUL in a sentence

Find what other words can be done using letters: "doubtful"
https://scrabble-word.com/finder/doubtful
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