cruel, severe / extremely

cruel, severe, harsh, merciless / extremely, excessively

cruelty, severity, harshness, mercilessness

cruel / severe, terrible / very bad, terrible

(organic chemistry) aldehyde

unjust; inhuman

inhumanity

being poisoned; poisoning / (chemistry) poisoning (inhibition of catalytic behavior)

to be poisoned / (chemistry) to be poisoned (undergo inhibition of catalytic behavior)

日時計: sundial / 火時計: a clock that tells time using the burning of sticks of incense or fuses