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Adjective

flippant

IPA /ˈflɪpənt/

Treating an important or serious subject too lightly, often by making casual remarks that suggest you do not care.

See example sentence: flippant

His flippant response made our difficult conversation even more uncomfortable.

Adjective

blithe

IPA /blaɪð/

Showing a careless lack of concern about a problem or risk that other people believe should be taken seriously.

See example sentence: blithe

His blithe dismissal of the storm warning worried everyone.

Adjective

nonchalant

IPA /ˈnɒnʃələnt/

Appearing calm and unconcerned, even when the situation might normally cause worry, excitement or embarrassment.

See example sentence: nonchalant

She gave a nonchalant shrug when we noticed the broken vase.

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