No. More joyful would be correct.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern JO--U----. That is, nine letter words with 1st letter J and 2nd letter O and 5th letter U. In alphabetical order, they are: joyfuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern J----L--R. That is, nine letter words with 1st letter J and 6th letter L and 9th letter R. In alphabetical order, they are: jaywalker jobholder joyfuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern ---FU-L-R. That is, nine letter words with 4th letter F and 5th letter U and 7th letter L and 9th letter R. In alphabetical order, they are: joyfuller woefuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 7 words with the pattern ----U-L-R. That is, nine letter words with 5th letter U and 7th letter L and 9th letter R. In alphabetical order, they are: decoupler joyfuller pasquiler redoubler uncoupler victualer woefuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern J-Y-U---R. That is, nine letter words with 1st letter J and 3rd letter Y and 5th letter U and 9th letter R. In alphabetical order, they are: joyfuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern JO-F--L--. That is, nine letter words with 1st letter J and 2nd letter O and 4th letter F and 7th letter L. In alphabetical order, they are: joyfuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern J-Y-UL---. That is, nine letter words with 1st letter J and 3rd letter Y and 5th letter U and 6th letter L. In alphabetical order, they are: joyfuller
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -O--U-L-R. That is, nine letter words with 2nd letter O and 5th letter U and 7th letter L and 9th letter R. In alphabetical order, they are: joyfuller woefuller
It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.It can be Word 2007 or Word 2010.
word - word(s), word(/ed/ier/iest), word(ing), word(iness), word(ily), word(y), word(age), word(less)
There are several, one is ...ful Here's a few more: joy joyance joyances joyed joyful joyfuller joyfullest joyfully joyfulness joyfulnesses joying joyless joylessly joylessness joylessnesses joyous joyously joyousness joyousnesses joypop joypopped joypopper joypoppers joypopping joypops joyridden joyride joyrider joyriders joyrides joyriding joyridings joyrode joys joystick joysticks
The word word is a noun.