Pronunciation: (in-ô'gyur-ul, -gur-ul),[key] —adj. 1. of or pertaining to an inauguration: Harding's inaugural address. 2. marking the beginning of a new venture, series, etc.: the inaugural run of the pony express.
—n. 1. an address, as of a president, at the beginning of a term of office.
2. an inaugural ceremony: to attend the presidential inaugural.