sévère

/se.vɛʁ/
1.
adjectivemasculine | feminineSing | Plur

strict

stern

harsh (in behaviour, rules or discipline)

Mon prof de maths est vraiment trop sévère avec nous.

My math teacher is really too strict with us.

Synonyms:strict, rigoureux, austère, intransigeant, dur
2.
adjectivemasculine | feminineSing | Plur

serious

severe

grave (used for illness, accidents, damage, weather, sanctions)

Il a eu un accident sévère; il est hospitalisé mais stable.

He had a serious accident; he's hospitalized but stable.

Synonyms:grave, sérieux, important, violent