Pronunciation: (grē'vus),[key] —adj. 1. causing grief or great sorrow: grievous news. 2. flagrant; outrageous; atrocious: a grievous offense against morality. 3. full of or expressing grief; sorrowful: a grievous cry. 4. burdensome or oppressive.
5. causing great pain or suffering: arrested for causing grievous bodily harm to someone in a bar.