Definition of grievous
causing or
marked by
grief or anguish; "a grievous loss"; "a grievous cry"; "her
sigh was heartbreaking"; "the heartrending
words of Rabin's granddaughter"
of
great gravity or
crucial import; requiring
serious thought; "grave responsibilities"; "faced a
grave decision in a
time of crisis"; "a grievous fault"; "heavy matters of state"; "the weighty matters to be discussed at the
peace conference"
shockingly brutal or cruel; "murder is an atrocious crime"; "a grievous
offense against morality"; "a grievous crime"; "no
excess was too monstrous for them to commit"