Plural – fal•la•cies
- A deceptive, misleading, or false notion, belief, etc: That the world is flat was at one time a popular fallacy.
- A misleading or unsound argument.
- Deceptive, misleading, or false nature, erroneousness.
- Logic. Any of various types of erroneous reasoning that render arguments logically unsound.
- Obsolete. Deception.
