importantly

From important +‎ -ly.

(UK, Received Pronunciation) IPA^(key): /ɪmˈpɔː.tənt.li/, [ɪmˈpʰɔːʔn̩ʔli], [ɪmˈpʰɔːtənt̚li]
Audio (Southern England): (file)
(General American) IPA^(key): /ɪmˈpɔɹ.tənt.li/, [ɪmˈpʰɔɹʔn̩tli], [ɪmˈpʰɔɹʔn̩ʔli]

importantly (comparative more importantly, superlative most importantly)

(sentence adverb) Used to mark a statement as having importance.
- 2009 August 23, Michael Apstein, “Here's to good health - maybe”, in San Francisco Chronicle, page K1:
  These potentially ground-breaking discoveries need to be tempered by the knowledge that very high doses - the equivalent of 100-plus bottles of red wine daily - were given to mice. Importantly, after resveratrol is absorbed into the blood, it is broken down quickly and may have limited effect in humans.
- 2021 September 3, Charudutta Panigrahi, “The Intimacy Of Slangs”, in Odisha News‎, archived from the original on 19 March 2025:
  More importantly and closer to life, slangs help build an instant intimacy and informality.
- 2023 March 8, Neil Robertson, “Tackling the skills shortage”, in RAIL, number 978, page 33:
  Importantly, apprenticeships provide an alternate route into employment, giving people from all backgrounds the chance to build in-demand skills and a career for life.
In an important manner.
- 2001 January/February, Ian Frazier, “Dearly Disconnected.”, in Mother Jones, volume 25, number 1, page 60:
  Even sitting in a restaurant, the person on a cell phone seems importantly busy and on the move.

used to mark a statement as having importance

in an important manner

English