usefuller is a valid English word

Scrabble validity: invalid ( international - Sowpods, US - Twl06 )
iScramble validity: invalid
QuickWords validity: invalid

Meanings

Adjective

(rare) Comparative form of useful

usefuller is not a Scrabble valid word

u1s1e1f4u1l1l1e1r1

• International English (Sowpods) - The word is not valid in Scrabble ✘
• US English (TWL06) - The word is not valid in Scrabble ✘
• 12 points

usefuller is not an iScramble, QuickWords valid word

u1s2e3f4u5l6l7e8r9

• The word is not valid in iScramble ✘
• The word is not valid in QuickWords ✘
• 45 points

Same letters words (Anagrams)

• none

Same letters plus one

• LEISUREFUL

Same letters minus one

• FUELLERS