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grievous
01
серьезный
of great gravity or crucial import; requiring serious thought
02
тяжкий
significantly threatening in way that makes one feel scared or anxious
03
ужасный
shockingly brutal or cruel
04
тяжёлый
causing or marked by grief or anguish
grievous
adj
grieve
v
grievously
adv
grievously
adv
Пример
Seeing the wild animal suffer from a grievous wound, the ranger decided to put it down.