<p><strong>Adjective</strong></p><ul><li>causing grief or great sorrow: grievous news</li><li>full of or expressing grief; sorrowful: a grievous cry</li><li>characterized by great pain or suffering; severe: grievous bodily harm; a grievous injury</li><li>having serious effects; grave: a grievous mistake; grievous faults</li><li>extremely or shockingly wicked, cruel, brutal, etc.; atrocious: a grievous offense against morality; grievous crimes</li><li>burdensome; oppressive: to incur grievous expenses</li></ul>