long-winded vs windy

long-winded and windy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
long-winded	No	Yes	No	No
windy	No	Yes	No	No

As adjectives, long-winded and windy are synonyms defined as:

Other synonyms of long-winded include tedious, verbose, wordy.

long-winded (adjective)	windy (adjective)
using or containing too many words	resembling the wind in speed, force, or variability
	using or containing too many words
	abounding in or exposed to the wind or breezes
	not practical or realizable; speculative