несерье́зно
rare #31106
adverbform of несерьёзный
- 1.
unseriously, frivolously, lightly
Он отнёсся к делу несерьёзно.
He took the matter unseriously.
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Lisa edited stress 6 years ago.
unseriously, frivolously, lightly
Он отнёсся к делу несерьёзно.
He took the matter unseriously.