Find Antonyms
fallacy Antonyms
Opposite of fallacy
Because the opposite of fallacy shifts with each meaning, the 9 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• noun (Context 1)
A mistaken belief or misconception, especially one based on unsound arguments or faulty reasoning.
Usage Example
"The notion that money alone guarantees lasting happiness is a widespread truth."
Strongest
truth
fact
Strong
reality
certainty
verity
• noun (Context 2)
A failure in reasoning that renders a logical argument invalid, or the quality of being logically flawed.
Usage Example
"The professor pointed out the logical validity in the student's debate opening."
Strongest
validity
soundness
Strong
logic
cogency
Similar words to fallacy
Words similar to fallacy shift depending on context. Common synonyms include:
misconception
sophism
paralogism
sophistry
delusion
myth
illusion
falsehood
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Fallacy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/fallacy