inaugural /ɪnˈɑːgjərəl/ adjective Learner's definition of INAUGURAL
always used before a noun
1
: happening as part of an official ceremony or celebration when someone (such as a newly elected official) begins an important job : happening as part of an inauguration就职的;就任的 2
: happening as the first one in a series of similar events首次的
— inaugural
noun, plural inaugurals chiefly US [count]