dreaded vs horrendous

dreaded and horrendous both are adjectives.

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

As adjectives, dreaded and horrendous are synonyms defined as:

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

dreaded (adjective)	horrendous (adjective)
causing fear or dread or terror	causing fear or dread or terror