What are naysayers?

I do have a clue what the word means,but I want the defeinition. See in the video around 1:23 when Gman mentions it.

Answer #1

Basically, it’s a pessimist.

Answer #2

. The term “… naysayer …” refers to someone who votes, or argues, against something (and by implication ….. against something that the speaker using the term is in favour of).
. I believe the origins of the term are based on opposing political factions wherein those who agree with your own stance vote “ yea “ (i.e. “yes” because they are “with you”), and those who disagree with your stance vote “ nay “, (i.e. “no” because they oppose you).
. There is an underlying implication that “naysayers” refers to groups who arbitrarily oppose you because you do not belong to their own particular faction or ideological grouping. .

Answer #3

Personally, I don’t believe “pessimism” has anything to do with it, either in the video posted, or in the broader (mainly literary) use of the term.

Answer #4

Kinda simmular to skepticism in action I guess.