1) Abhorrent 2) Abominable 3) Abominable, odious 4) Deserving to be detested 5) French word used in English 6) Hateful 7) Loathsome 8) Obscene 9) Offensive 10) Offensive to the mind 11) Repugnant 12) Repulsive 13) Unequivocally detestable Found on https://www.crosswordclues.com/clue/detestable
De·test'a·ble adjective [ Latin detestabilis : confer French détestable .] Worthy of being detested; abominable; extremely hateful; very odious; deserving abhorrence; as, detestable vices. « Thou hast defiled my sanctuary will all thy detestable things, and with all... Found on http://www.encyclo.co.uk/webster/D/51
detestable, detestability 1. Causing or deserving intense dislike. 2. Inspiring or deserving abhorrence or scorn. 3. Referring to what elicits or deserves strong dislike, distaste, or revulsion. Found on http://www.wordinfo.info/words/index/info/view_unit/2364/2