Saucy and impertinent are synonyms for flippant.
Some synonyms for 'not serious' are light, flippant, unimportant, or unprofessional.
A few words that are synonyms for disrespectful behavior is: contemptuous, discourteous, flippant, impolite, profane, and also ungracious.
Some synonyms for the adjective 'flippant' are: arrogant, disrespectful, and cheeky. It's basically used to describe an individual who is very flighty. Grammatically speaking, however, adjectives do not describe other adjectives. They describe nouns. To describe the adjective flippant in a sentence, one would need an adverb. Example: extremely flippant.
His flippant remark hurt her feelings.
The students flippant action got him suspended
(flippant is an adjective meaning inappropriately light-hearted, or impolite)"It seemed flippant to talk about his college girlfriends in his eulogy.""In reply to the host's advice, he made a flippant remark about driving drunk."
His flippant remark was very much "out-of-character" for him.
The cast of Flippant - 2008 includes: Banks Helfrich
two.
As a noun for starters.
flippant means "treating serious matters with inappropriate light-heartedness or lack of respect. "Flippant means unconcerned; insouciant; nonchalant; cavalier. It's close to the meaning of cheeky; impudent.
"Even with the teacher standing right over him, Joey continued to be flippant despite obviously being on the losing end of a power struggle."