retrogression is a valid English word

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

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

A deterioration or decline to a previous state.
(biology) A return to a less complex condition.

retrogression is a Scrabble valid word

r1e1t1r1o1g2r1e1s1s1i1o1n1

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

retrogression is an iScramble, QuickWords valid word

r1e2t3r4o5g6r7e8s9s10i11o12n13

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

Same letters words (Anagrams)

• none

Same letters plus one

• RETROGRESSIONS

Same letters minus one

• INTROGRESSOR