naysayer

The most notable naysayer was Francis Crick, the Nobel Prize-winning co-discoverer of the structure of DNA who later became a neuroscientist.

They are willing to openly question the premise or logic or value of an idea, and they somehow manage to do this without building a reputation for being a naysayer or difficult to work with.

Despite the naysayers, Peloton has managed to soar in the past year, posting profits and ever-growing revenue in recent quarters even while struggling to produce quickly enough to match demand.

So when you go to people in these various agencies, they are professional naysayers, they say, “Well, we can’t do that.”