frightful vs atrocious

frightful and atrocious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
frightful	No	Yes	No	No
atrocious	No	Yes	No	No

As adjectives, frightful and atrocious are synonyms defined as:

Other synonyms of frightful include horrible, horrifying, ugly.

frightful (adjective)	atrocious (adjective)
provoking horror	provoking horror
extremely distressing	exceptionally bad or displeasing
extreme in degree or extent or amount or impact	shockingly brutal or cruel