Synonyms for Execrate (same or very similar meaning)
WordNet sense 1 (find repugnant):
abhor, abominate, loathe
WordNet sense 2 (curse or declare to be evil or anathema or threaten with divine punishment):
anathematize, anathematise, anathemise, anathemize, comminate, accurse
From the ODE community, based on WordNet
add/edit