The definition of blasphemy is saying something concerning God that is very disrespectful.
(noun)An example of blasphemy is when John Lennon said the Beatles were more popular than Jesus.
See blasphemy in Webster's New World College Dictionary
noun pl. blasphemies
Origin: ME blasfemie < OFr blasphemie < LL(Ec) blasphemia < Gr blasphēmia: see blaspheme
See blasphemy in American Heritage Dictionary 4
noun pl. blas·phe·mies
Origin:
Origin: Middle English blasfemie
Origin: , from Late Latin blasphēmia
Origin: , from Greek blasphēmiā
Origin: , from blasphēmein, to blaspheme; see blaspheme
.Learn more about blasphemy