All 5 Uses

flippant
in
The Screwtape Letters
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I divide the causes of human laughter into Joy, Fun, the Joke Proper, and Flippancy.†
Chpt 11 *

flippancy = an inappropriate lack of seriousness
But flippancy is the best of all.†
Chpt 11
Among flippant people the Joke is always assumed to have been made.†
Chpt 11
If prolonged, the habit of Flippancy builds up around a man the finest armour-plating against the Enemy that I know, and it is quite free from the dangers inherent in the other sources of laughter.†
Chpt 11

flippancy = an inappropriate lack of seriousness
As the uneasiness and his reluctance to face it cut him off more and more from all real happiness, and as habit renders the pleasures of vanity and excitement and flippancy at once less pleasant and harder to forgo (for that is what habit fortunately does to a pleasure) you will find that anything or nothing is sufficient to attract his wandering attention.†
Chpt 12

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