gainsayer

As nouns the difference between detractor and gainsayer

is that detractor is a person who belittles the worth of another person or cause while gainsayer is one who contradicts or denies what is alleged; an opposer.

As nouns the difference between naysayer and gainsayer

is that naysayer is one who consistently denies, criticizes, or doubts; a detractor while gainsayer is one who contradicts or denies what is alleged; an opposer.

As a noun gainsayer

is one who contradicts or denies what is alleged; an opposer.

As a verb gainsayed is

(nonstandard) (gainsay).

As nouns the difference between taxonomy and gainsayer

is that taxonomy is the science or the technique used to make a classification while gainsayer is one who contradicts or denies what is alleged; an opposer.

Withsayer is a synonym of gainsayer.

As nouns the difference between gainsayer and withsayer

is that gainsayer is one who contradicts or denies what is alleged; an opposer while withsayer is one who withsays; an opponent.