fallacious

As adjectives the difference between fallacious and legitimate

is that fallacious is characterized by fallacy; false or mistaken while legitimate is in accordance with the law or established legal forms and requirements; lawful.

As a verb legitimate is

to make legitimate, lawful, or valid; especially, to put in the position or state of a legitimate person before the law, by legal means.

As adjectives the difference between fragile and fallacious

is that fragile is easily broken or destroyed, and thus often of subtle or intricate structure while fallacious is characterized by fallacy; false or mistaken.

As adjectives the difference between fallacious and fraught

is that fallacious is characterized by fallacy; false or mistaken while fraught is (of a cargo-carrier) laden.

As a noun fraught is

(obsolete) the hire of a ship or boat to transport cargo.

As a verb fraught is

to load (a ship, cargo etc).

As adjectives the difference between fallacious and nonfallacious

is that fallacious is characterized by fallacy; false or mistaken while nonfallacious is not fallacious.

As an adjective fallacious

is characterized by fallacy; false or mistaken.

As a noun fallaciousness is

the property of being fallacious.