A fallacy is a flawed reasoning or argument that leads to an invalid or unsound conclusion. It is an error in logic that can deceive or mislead the audience.
Related terms
Straw man fallacy: Misrepresenting someone's argument to make it easier to attack.
Ad hominem fallacy: Attacking the person making the argument instead of addressing the argument itself.
Appeal to authority fallacy: Accepting a claim as true simply because someone with authority said it, without further evidence.