sophism

sophism is a   Noun

Definition:

[1] The doctrine or mode of reasoning practiced by a sophist; hence, any fallacy designed to deceive. When a false argument puts on the appearance of a true one, then it is properly called a sophism, or "fallacy". I. Watts. Let us first rid ourselves of sophisms, those of depraved men, and those of heartless philosophers. I. Taylor.

Synonyms: