horrid

Concise Oxford English Dictionary © 2008 Oxford University Press:
horrid/ˈhɒrɪd/

▶adjective

• 1 causing horror.

• 2 very unpleasant.

• 3 archaic rough; bristling.

– derivatives
horridly adverb,
horridness noun.

– origin C16: from L. horridus, from horrere ‘shudder, (of hair) stand on end’.