Synonyms for Emeritus (same or very similar meaning)
WordNet sense 1 (honorably retired from assigned duties and retaining your title along with the additional title `emeritus' as in `professor emeritus'; `retired from assigned duties' need not imply that one is inactive):
retiredWordNet sense 2 ((used especially of persons) having lived for a relatively long time or attained a specific age):
oldFrom the ODE community, based on WordNetadd/edit