undersigned is a valid English word

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

Meanings

Adjective (NOT COMPARABLE)

(of a document) Having signatures at the end or bottom.
(of a person) Having signed at the end of a document.

Noun (COUNTABLE)

the person or those people, mentioned in a document, whose names and signatures appear at the end

undersigned is a Scrabble valid word

u1n1d2e1r1s1i1g2n1e1d2

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

undersigned is an iScramble, QuickWords valid word

u1n2d3e4r5s6i7g8n9e10d11

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

Same letters words (Anagrams)

• none

Same letters plus one

• UNDERSENDING
• UNDERSIGNEDS

Same letters minus one

• DENDINGERS
• REDDENINGS
• UNDESIGNED
• UNRESIGNED