unseriously

In an unserious way; flippantly, frivolously.

日本語の意味

ふざけた感じで / 軽薄に / 真面目さを欠いた様子で

She answered the professor unseriously, which surprised everyone in the lecture hall.

彼女は教授にふざけて答え、講義室の全員を驚かせた。

意味（1）

In an unserious way; flippantly, frivolously.

more unseriously

（ comparative ）

most unseriously

（ superlative ）