blasphemy
Concise Oxford English Dictionary © 2008 Oxford University Press:
blasphemy/ˈblasfəmi/
▶noun (pl. blasphemies) profane or sacrilegious talk about God or sacred things.
– derivatives
blasphemous adjective,
blasphemously adverb.
blasphemous adjective,
blasphemously adverb.
'blasphemy' also found in these Oxford entries:

