irreverent
1. [ adjective ] showing lack of due respect or veneration
Examples:

"irreverent scholars mocking sacred things" "noisy irreverent tourists"

Related terms: reverent blasphemous aweless disrespectful
2. [ adjective ] characterized by a lightly pert and exuberant quality
Synonyms: pert saucy impertinent
Examples:

"a certain irreverent gaiety and ease of manner"

Related terms: spirited
3. [ adjective ] (religion) not revering god
Synonyms: godless
Related terms: impious
Similar spelling:   irreverently
  irreverence
  irreversible
  irreversibly