Undoubtful is valid Scrabble Word

Is undoubtful a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is undoubtful valid Words with Friends?
Words with Friends NO

10 letters word
16 points in Scrabble
22 points in WWF

Definitions for UNDOUBTFUL in dictionary:

ADJECTIVE:

not doubtful

How to use UNDOUBTFUL in a sentence

It is our deliberate judgment that no first volume by any author has ever been published in America showing more undoubtful symptoms of genuine poetic power than this.

Similar words containing DOUBT without suffix ful and without prefix un

doubt8 doubts9 doubted11 doubter10 redoubt10 doubters11 doubtful14 doubting12 misdoubt13 redoubts11 doubtable14 doubtably17 doubtfuls15 doubtings13 doubtless12 misdoubts14 redoubted13 undoubted13 doubtfully19 doubtingly17 misdoubted16 redoubting14 undoubting14 doubtlessly17 misdoubtful19 misdoubting17 redoubtable16 redoubtably19 undoubtable16 undoubtedly18 doubtfulness18 undoubtingly19 doubtlessness16 doubtfulnesses20 doubtlessnesses18 redoubtableness20

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