tumult vs bustle

tumult and bustle both are nouns.

Word	Noun	Adjective	Verb	Adverb
tumult	Yes	No	No	No
bustle	Yes	No	Yes	No

As nouns, bustle is a hyponym of tumult; that is, bustle is a word with a more specific, narrower meaning than tumult:

Other hyponyms of tumult include ado, flurry, fuss, hustle, stir.

tumult (noun)	bustle (noun)
the act of making a noisy disturbance	a rapid active commotion
violent agitation	a framework worn at the back below the waist for giving fullness to a woman's skirt
a state of commotion and noise and confusion

tumult (verb)	bustle (verb)
	move or cause to move energetically or busily