Synonyms for Overmuch (same or very similar meaning)
WordNet sense 1 (a quantity that is more than what is appropriate):
overabundance, superabundance, overmuchnessWordNet sense 2 ((quantifier used with mass nouns) great in quantity or degree or extent):
muchWordNet sense 3 (more than necessary):
too muchFrom the ODE community, based on WordNetadd/edit