Grièvement (en. Seriously)

[ɡʁiːv.mɑ̃]

Synonyms

Slang Meanings

seriously
He makes fun of the situation, but it’s grievously serious.
Il se moque de la situation, mais c'est grièvement sérieux.
really bad
His behavior is grievously unacceptable.
Son comportement est grièvement inacceptable.