importantly

adverb

im·​por·​tant·​ly im-ˈpȯr-tᵊnt-lē How to pronounce importantly (audio)
especially Southern US and New England -tənt-
-dənt-
1
used to say that what follows in a sentence is important
… much more importantly he stands a chance of having his publication barred …H. L. Mencken
2
a
: in an important way
… contributed importantly to the language of the field.Ernst Mayr
… the real story is importantly different from the one surmised.Alexander Woollcott
b
: in a self-important or pompous manner
… he talked importantly of the managerial position he had reached, after a lifetime of devotion and toil …William Trevor
Importantly vs. Important: Usage Guide

A number of commentators have objected to importantly as a sentence modifier (the use defined above at sense 1) and have recommended important instead. Actually, both the adverb and the adjective are in reputable standard use in this function. Important is always used with more or most.

had bronze weapons and composite bows; more important, they utilized the horse and war chariot Harry A. Gailey, Jr.
second and most important, the book contains no important woman character F. Scott Fitzgerald

Importantly is commonly used in similar contexts, but it is somewhat more flexible in not requiring more or most.

sticks and, just as importantly, unsticks easily Phoebe Hawkins
importantly, the leaven in the mixture is quality George O'Brien

Examples of importantly in a Sentence

Her research has contributed importantly to our understanding of the disease. He strutted to and fro importantly, ordering everybody around.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And most importantly, Martha, the Iranians could classify sites as military sites that were then off limits. Quinn Scanlan, ABC News, 14 June 2026 Just as importantly, Towns, who was never known for his defense, doggedly disrupted all-world Spurs star Victor Wembanyama during the Finals. Peter Sblendorio, New York Daily News, 14 June 2026 The Windows app, SteelSeries GG, is used to customize, adjust, and update the firmware on all your SteelSeries PC peripherals—and, more importantly, provides access to Sonar, an audio processing suite with many useful options. Will Greenwald, PC Magazine, 14 June 2026 Perhaps more importantly, the experiment transforms abstract debates into testable science. Aamir Khollam, Interesting Engineering, 13 June 2026 See All Example Sentences for importantly

Word History

First Known Use

1611, in the meaning defined at sense 2

Time Traveler
The first known use of importantly was in 1611

Browse Nearby Words

Cite this Entry

“Importantly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/importantly. Accessed 17 Jun. 2026.

More from Merriam-Webster on importantly

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster