attire vs wearable

attire and wearable both are nouns.

Word	Noun	Adjective	Verb	Adverb
attire	Yes	No	Yes	No
wearable	Yes	Yes	No	No

As nouns, wearable is a hypernym of attire; that is, wearable is a word with a broader meaning than attire:

Other hypernyms of attire include article of clothing, clothing, habiliment, vesture, wear.

attire (noun)	wearable (noun)
clothing of a distinctive style or for a particular occasion	a covering designed to be worn on a person's body

attire (adjective)	wearable (adjective)
	suitable for wear or able to be worn

attire (verb)	wearable (verb)
put on special clothes to appear particularly appealing and attractive