underneath is a valid English word

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

Meanings

Adverb (NOT COMPARABLE)

Below; in a place beneath.
On the underside or lower face.

Preposition

Under, below, beneath.
• Underneath the water, all was calm.
Under the control or power of.
• There was little freedom underneath the jackboot.

Adjective (NOT COMPARABLE)

Under, lower.
• You can have the underneath bunk.

Noun (USUALY UNCOUNTABLE)

The bottom of something.
• The underneath of the aircraft was painted blue.
A background radio sound track played during a specific announcement or program.

underneath is a Scrabble valid word

underneath

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

underneath is an iScramble, QuickWords valid word

underneath

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

Same letters words (Anagrams)

• UNADHERENT

Same letters plus one

• UNDERNEATHS
• UNHEARTENED

Same letters minus one

• UNDERHEAT
• UNEARTHED
• UNHEARTED