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Published January 10, 2023. Updated March 5, 2023.

This helpful guide will show you how to use fallacy in a sentence. It will show you the definition of fallacy, as well as synonyms, antonyms, and the types of connotations that the word can carry.

Usage for fallacy

Definition: a misleading, specious, and sometimes deceitful argument, belief, or concept

Part(s) of speech: noun

Antonyms: truth; certainty; accuracy

Synonyms: falsehood; delusion; artifice

Here are but a few sample sentences of the word in action!

• She is spreading fallacies about my ice cream business, and I’m losing customers. She says there are ants in my kitchen!
• You’re attacking my character rather than my argument. I’m afraid that’s a logical fallacy and an ad hominem attack.
• I doubt you’ll be able to sway the voters with an obvious fallacy about my military record, but you go ahead and try.
• When you make this speech in front of the board, you have to make sure that no mistakes are made. Triple-check your facts for any potential fallacy.
• She told one fallacy, which came out of jealousy, and it resulted in a man never seeing the woman he loved ever again.
• It would be a fallacy to think chess is a game that can be fully understood in an afternoon.
• The fallacy about people hiding drugs in candy for children on Halloween has been circulating throughout the media for decades now.
• I’ve heard your entire argument and I’m sorry to say that your core belief is rooted in fallacy, which means your whole presentation comes crumbling down.
• People of certain religions believe that every religion except their own is based on a fallacy.
• It’s a fallacy to think that all camping needs to be rough and intense. We rent out a cabin with heated floors in the bathroom when we go camping.
• Sometimes telling a single fallacy can spiral into more and more lies until it’s too late to ever tell the truth again.
• If a politician is trying to avoid being questioned about their own misdeeds, they will often deflect with a fallacy about their opponent.
• He turned his profit report into a fallacy so that people would keep investing in his business despite its failure.
• I only joined your team because you told me some fallacy about the other team’s leader having an affair with my wife.
• Cults are usually based on one core fallacy. If the leader is able to convince all their followers to believe in that lie, they can attain incredible power.