inaugural
adjective
uk/ɪˈnɔːɡjərəl/ usan inaugural speech is the first speech someone gives when starting an important new job:
an inaugural address/lecture/speech In her inaugural speech, she identified the recruitment of top faculty talent to the university as one of her chief goals.
an inaugural event is the first in a series of planned events:
He plans to be on the inaugural flight when the twinjet aircraft goes into service next month.
He held the inaugural meeting on Friday of a council to forge common ground between union and business leaders.
an inaugural celebration/ceremony/event