horrendous vs terrible

horrendous and terrible both are adjectives.

Word	Noun	Adjective	Verb	Adverb
horrendous	No	Yes	No	No
terrible	No	Yes	No	No

As adjectives, horrendous and terrible are synonyms defined as:

Other synonyms of horrendous include awful, dire, direful, dread, dreaded, dreadful, fearful, fearsome, frightening, horrific.

horrendous (adjective)	terrible (adjective)
causing fear or dread or terror	causing fear or dread or terror
	extreme in degree or extent or amount or impact
	intensely or extremely bad or unpleasant in degree or quality
	exceptionally bad or displeasing