importantly

/ɪmˈpɔːrtəntli/
adverb
  1. Used to emphasize that something is significant or has great value.
    • Most importantly, remember to bring your passport.
    • Importantly, the experiment proved the theory was correct.
    • She spoke importantly about the need for change.
  2. In a way that shows self-importance or arrogance.
    • The child sat importantly at the head of the table.
    • She cleared her throat importantly before speaking.
    • He walked importantly into the room, expecting everyone to notice.
Antonyms