umpteen is a valid English word

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

Meanings

Determiner

(informal often slightly derogatory) Relatively large but unspecified in number.
• Synonym: umpty-ump

umpteen is a Scrabble valid word

umpteen

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

umpteen is an iScramble, QuickWords valid word

umpteen

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• none

Same letters plus one

• ERUMPENT
• PNEUMATE
• UNEXEMPT
• UNTEMPER

Same letters minus one

• MEETUP
• PETUNE
• PNEUME
• PUENTE
• PUNTEE
• TUPMEN
• UNMEET