hor·rid 
(hôrĭd, hŏr-)
(hôrĭd, hŏr-)adj.
1. Causing horror; dreadful.
2. Extremely disagreeable; offensive.
3. Archaic Bristling; rough.
[Alteration (influenced by Latin horridus, bristling) of Middle English horred, past participle of horren, to bristle, from Latin horrēre, to tremble, bristle.]
horrid·ly adv.
horrid·ness n.