fallacy
1 synonym and 3 antonyms for fallacy, grouped by meaning and by how common each one is.
Noun — A mistaken belief, especially one based on flawed reasoning.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
false belief
Synonyms by Meaning
1. noun
A mistaken belief, especially one based on flawed reasoning.
“It's a common fallacy that money alone brings happiness.”
false belief
Opposites
2. noun
An argument that seems logical but is actually flawed or misleading.
“His argument relied on a classic fallacy: attacking the person instead of the point.”
Opposites
How to use fallacy
The word patterns that sound natural to a native speaker.
common fallacy
logical fallacy
fall for a fallacy
Etymology
From Latin fallacia ("deception"), from fallere ("to deceive").
Full origin of fallacy →Frequently asked questions
What does “fallacy” mean?
The word “fallacy” means a mistaken belief, especially one based on flawed reasoning. In plain terms, a false idea or a piece of reasoning that looks convincing but doesn't actually hold up.
How do you pronounce “fallacy”?
“Fallacy” is pronounced FAL-uh-see (/ˈfæl.ə.si/ in IPA).
How do you use “fallacy” in a sentence?
Here is “fallacy” used in a sentence: “It's a common fallacy that money alone brings happiness.”
What part of speech is “fallacy”?
“Fallacy” is a noun.
Where does the word “fallacy” come from?
The word “fallacy” comes from Latin. From Latin fallacia ("deception"), from fallere ("to deceive").
Is “fallacy” a common word?
“Fallacy” is an uncommon word in modern English, usually learned at around the C2 level.
How many meanings does “fallacy” have?
“Fallacy” has 2 distinct senses listed in this dictionary. The most common is: a mistaken belief, especially one based on flawed reasoning.
