1.
showing lack of due respect or veneration
irreverent scholars mocking sacred things
noisy irreverent tourists
2.
characterized by a lightly pert and exuberant quality
a certain irreverent gaiety and ease of manner
3.
not revering god
The following are synonyms for 'irreverent'. Click on any of them to get both Bibliodata's full list of common definitions and a further set of synonyms.