DictionaryirreverentLacking customary respect
adjective

irreverent

ih-REV-er-unt/ɪˈrevərənt/

Showing little respect for things usually treated seriously.

The irreverent attendee lounges and mocks the honored object during the solemn ceremony.

During a solemn ceremony, one attendee lounges casually and makes a mocking gesture toward the honored object while everyone else stands respectfully.
Etymology

The pieces express not standing in awe of something. That lack of reverence becomes the attitude of treating normally respected or serious subjects without the respect they conventionally receive.

In context

UQx World101x Anthropology of Current World Issues presenter16:20
I'm very irreverent, anti-establishment just by instinct.
World101x: Full Interview with Michael Jackson
wpsu presenter4:21
And didn't necessarily believe what was told to them, were funny and irreverent.
Margaret Atwood on The Handmaid's Tale, religion and becoming a writer

More examples

  • The cartoon offers an irreverent look at presidential politics.
  • His irreverent remarks upset people who consider the ceremony sacred.
  • Even the museum director enjoys their irreverent take on classical art.

Forms

irreverent

irreverence noun — Lack of respect for traditionally serious things.

irreverently adverb — In a way that shows little reverence.

Similar words

disrespectful
Broader; includes ordinary rudeness toward people, not just revered things.
flippant
Emphasizes inappropriate lightness rather than disregard for authority or tradition.
impious
Specifically suggests a lack of respect for religion or sacred things.