ponderous is a valid English word

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

Meanings

Adjective (COMPARABLE)

Heavy, massive, weighty.
(figuratively by extension) Serious, onerous, oppressive.
Clumsy, unwieldy, or slow, especially due to weight.

ponderous is a Scrabble valid word

p3o1n1d2e1r1o1u1s1

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

ponderous is an iScramble, QuickWords valid word

p1o2n3d4e5r6o7u8s9

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

Same letters words (Anagrams)

• NEUROPODS

Same letters plus one

• PSEUDONORM
• SHOREPOUND
• SUDROPHONE
• SUPERDONOR
• UNPROPOSED

Same letters minus one

• NEUROPOD
• POUNDERS
• PRODNOSE
• UNDEROOS