detestable vs execrable

detestable and execrable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
detestable	No	Yes	No	No
execrable	No	Yes	No	No

As adjectives, detestable and execrable are synonyms defined as:

Other synonyms of detestable include abominable, odious.

detestable (adjective)	execrable (adjective)
unequivocally detestable	deserving to be execrated
offensive to the mind	unequivocally detestable
	of very poor quality or condition