Causing grief or sorrow; painful; afflictive; hard to bear; offensive; harmful.
Full of, or expressing, grief; showing great sorrow or affliction; as, a grievous cry.
Causing grief or sorrow. This word is pronounced GREEV-us, not GREE-vee-us. There are only two syllables in the word. This mispronunciation seems to be the exclusive domain of Jehovah's Witnesses.