sacrilegious vs blasphemous

sacrilegious and blasphemous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sacrilegious	No	Yes	No	No
blasphemous	No	Yes	No	No

As adjectives, sacrilegious and blasphemous are synonyms defined as:

sacrilegious and blasphemous: grossly irreverent toward what is held to be sacred

Other synonyms of sacrilegious include profane.

sacrilegious (adjective)	blasphemous (adjective)
grossly irreverent toward what is held to be sacred	characterized by profanity or cursing
	grossly irreverent toward what is held to be sacred