grievous

(adjective)

adjective

1. causing fear or anxiety by threatening great harm

- grievous bodily harm

Similar word(s): critical, dangerous, grave, serious, severe

2. causing or marked by grief or anguish

- a grievous loss

- a grievous cry

Similar word(s): sorrowful, heartbreaking, heartrending

3. of great gravity or crucial import; requiring serious thought

- a grievous fault

Similar word(s): important, grave, heavy, weighty

4. shockingly brutal or cruel

- a grievous offense against morality

- a grievous crime

Similar word(s): evil, atrocious, flagitious, monstrous