Open English Wordnet
Nouns
(n)inaugural address, inauguralan address delivered at an inaugural ceremony (especially by a United States president)
(n)inauguration, inauguralthe ceremonial induction into a position“the new president obviously enjoyed his inauguration”
Adjectives
(s)inaugural, initiative, initiatory, first, maidenserving to set in motion“the magazine's inaugural issue”, “the initiative phase in the negotiations”, “an initiatory step toward a treaty”, “his first (or maiden) speech in Congress”, “the liner's maiden voyage”