attrib.
- marking the beginning of an institution, activity, or period of office（机构）创立的, （活动）开幕的, （任期）开始的, 就职的：
his inaugural concert as Music Director.
他作为音乐总监的就职音乐会。
- an inaugural speech, especially one made by an incoming US president（尤指即将就任的美国总统的）就职演说。
词源
late 17th cent.: from French （from inaugurer 'inaugurate'， from Latin inaugurare） + -AL.