Synonyms for Detestable (same or very similar meaning)
WordNet sense 1 (offensive to the mind):
abhorrent, obscene, repugnant, repulsiveWordNet sense 2 (unpleasant or disgusting especially to the senses):
offensiveWordNet sense 3 (unequivocally detestable):
abominable, execrable, odiousWordNet sense 4 (evoking or deserving hatred):
hatefulFrom the ODE community, based on WordNetadd/edit