IPA: /ˈneɪˌseɪər/
KK: /ˈneɪˌseɪər/
A person who always says no or expresses negative opinions about something, often doubting or criticizing ideas or proposals.
Despite the team's enthusiasm, the naysayer voiced concerns about the project's feasibility.
Naysayer → It is formed from "nay" (from Old English "nēah", meaning no or not) and "sayer" (from Old English "secgan", meaning to say). A naysayer is someone who says no or expresses negative opinions.
Think of someone who says 'no' ('nay') and 'expresses' ('sayer') their thoughts — that's what a naysayer does.