Windy is a related term of magniloquent.
As adjectives the difference between windy and magniloquent
is that
windy is accompanied by wind or
windy can be (of a path etc) having many bends; winding, twisting or tortuous while
magniloquent is speaking pompously; using swelling discourse; bombastic; tumid in style; grandiloquent.
As a noun windy
is (colloquial) fart.