Is “Naysayer” a Scrabble word?
Yes
NAYSAYER
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Naysayer
/ˈneɪ.ˌseɪ.ə(ɹ)/
noun
1.One who consistently denies, criticizes, or doubts; a detractor.
“He ignored the naysayers and succeeded with his idea.”
Synonyms: cynic, doubter, misanthrope, pessimist