im·​por·​tant·​ly im-ˈpȯr-tᵊnt-lē How to pronounce importantly (audio)
 especially Southern US and New England  -tənt-,
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
: 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
: 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 Finally, extraordinary political tenacity and leadership were required – ultimately from Northern Ireland’s political leaders, but no less importantly from then-British Prime Minister Tony Blair and Ireland’s former head of government, Bertie Ahern. Ned Temko, The Christian Science Monitor, 8 Feb. 2024 Some are actively monitoring turnstile data to judge the frequency and, even more importantly, the length of time their workers are there, Fortune reported. Sheryl Estrada, Fortune, 6 Feb. 2024 As with other tedious jobs in today’s world, this raises the question: Can, and more importantly, should, publishers trust AI to handle peer review instead? IEEE Spectrum, 6 Feb. 2024 Perhaps most importantly, there are quite a few good new TV shows premiering, too. Savannah Salazar, Vulture, 2 Feb. 2024 Biden inherited a border that was under control via humane and lawful policies that had been put in place by the Trump administration, most importantly Remain in Mexico. The Editors, National Review, 29 Jan. 2024 And, most importantly, it was bottled at cask strength of more than 142 proof (71.4 percent ABV to be precise). Jonah Flicker, Robb Report, 28 Jan. 2024 The Sky have several ins with Diggins-Smith — most importantly, a long-standing relationship with Weatherspoon, who was open about her interest in the guard during interviews last year. Julia Poe, Chicago Tribune, 26 Jan. 2024 One that will include discussions about impact production, in collaboration with ACE Producers, genre films at festivals and, most importantly, the challenge of trying to balance one’s career with a private life. Marta Balaga, Variety, 26 Jan. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'importantly.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1611, in the meaning defined at sense 2

Time Traveler
The first known use of importantly was in 1611

Dictionary Entries Near importantly

Cite this Entry

“Importantly.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2024.

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