undefeated is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

never defeated; always victorious
• He was the undefeated tiddlywinks champion of the school.

undefeated is a Scrabble valid word

undefeated

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

undefeated is an iScramble, QuickWords valid word

undefeated

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

Same letters words (Anagrams)

• none

Same letters plus one

• UNDEFECATED
• UNFEDERATED

Same letters minus one

• none