earsplitting vs thunderous

earsplitting and thunderous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
earsplitting	No	Yes	No	No
thunderous	No	Yes	No	No

As adjectives, earsplitting and thunderous are synonyms defined as:

earsplitting and thunderous: loud enough to cause (temporary) hearing loss

Other synonyms of earsplitting include deafening, thundery.

earsplitting (adjective)	thunderous (adjective)
loud enough to cause (temporary) hearing loss	loud enough to cause (temporary) hearing loss
	extremely ominous