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casual
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swobodny, poufały, nieformalny (np. nastawienie)
I'm sorry if I got too casual.
His behaviour was too casual; I didn't like that.
I am quite casual about meeting a celebrity.
Remain casual and don't mention about anything unusual going on.
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familiar
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cosy
,
cozy
,
cosey
,
cozey
,
cozie
,
cosie
We had a cosy chat yesterday.
The cozy atmosphere encouraged sharing secrets.
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chummy