backlash vs shitstorm

backlash and shitstorm both are nouns.

Word	Noun	Adjective	Verb	Adverb
backlash	Yes	No	Yes	No
shitstorm	Yes	No	No	No

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

Other hyponyms of backlash include white backlash, whitelash.

backlash (noun)	shitstorm (noun)
an adverse reaction to some political or social occurrence	A considerable backlash or controversy
a movement back from an impact

backlash (verb)	shitstorm (verb)
come back to the originator of an action with an undesired effect