firmless is a valid English word

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

Meanings

Adjective (COMPARABLE)

(obsolete) Detached from physical substance.
(obsolete) Infirm; unstable.

firmless is a Scrabble valid word

f4i1r1m3l1e1s1s1

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

firmless is not an iScramble, QuickWords valid word

f1i2r3m4l5e6s7s8

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

Same letters words (Anagrams)

• FRIMSELS

Same letters plus one

• REMISSFUL
• SLAMFIRES

Same letters minus one

• ELFISMS
• FILMERS
• FIRLESS
• FRIMSEL
• REFILMS
• RIMLESS
• SELFISM
• SERFISM
• SIMLERS
• SLIFERS
• SMILERS