严厉

At home their father rules them with a rod of iron.

They should be severely punished for what they have done.

With all the outward severity, he is kind at heart.

be stern to sb; be heavy on/with sb; be severe upon sb

apply stern/severe sanctions (against a country, etc)

sternly/strongly denounce sb

blast a denunciation; denounce sb bitterly/hotly

scathing remarks

severe criticism

stiff penalty

severely scold sb; give sb a sharp scolding

punish sb with severity

be stern in manner

speak in a very stern voice

stern look

take drastic measures