fallacious
Pronunciation
Adjective
B2 Upper-intermediate
Quick answer
Based on a mistaken belief or flawed reasoning.
Synonyms and antonyms
Usage notes
The related noun "fallacy" is more commonly used than the adjective in everyday academic writing.
Test yourself
Which word fits the gap? "His argument sounded convincing at first, but it rested on a _____ assumption."
Answer: fallacious
In your own words, what does "fallacious" mean?
Based on a mistaken belief or flawed reasoning.
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