as·​tro·​nom·​i·​cal | \ ˌa-strə-ˈnä-mi-kəl How to pronounce astronomical (audio) \
variants: or less commonly astronomic \ ˌa-​strə-​ˈnä-​mik How to pronounce astronomical (audio) \

Definition of astronomical

1 : of or relating to astronomy astronomical observations
2 : enormously or inconceivably large or great astronomical numbers an astronomical price

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Other Words from astronomical

astronomically \ ˌa-​strə-​ˈnä-​mi-​k(ə-​)lē How to pronounce astronomical (audio) \ adverb

Examples of astronomical in a Sentence

The cost of the office building was astronomical. We got an astronomical telephone bill this month.
Recent Examples on the Web In many respects, the astronomical rise in the value of the 1979 OPC Gretzky rookie reflects the unprecedented boom in the sports card and memorabilia market since the start of the pandemic. Tommy Beer, Forbes, 27 May 2021 In early February, Arcimoto’s stock peaked at more than $36 a share and the company’s market capitalization momentarily topped $1 billion, an astronomical rise for a company whose shares were worth just over a dollar last March. Jamie Goldberg, oregonlive, 22 Apr. 2021 Chess has seen an astronomical rise in popularity over the past year. Chazz Mair, Wired, 8 Mar. 2021 Over the past year, it's been an astronomical rise. Greg Hanlon,, 25 Feb. 2021 Investors have been leaning on cryptocurrencies during the pandemic as the US dollar has weakened, leading to Bitcoin's astronomical rise. Aj Willingham, CNN, 28 Dec. 2020 That streak of profits has earned Tesla a spot in the S&P 500, an announcement at least partly responsible for the astronomical rise in Tesla's stock this year. Colin Beresford, Car and Driver, 19 Dec. 2020 At the Montrose children’s bookstore Once Upon a Time, owner Maureen Palacios and her daughter Jessica often work 12-hour days to keep up with in-person customers and an astronomical rise in online orders. Dorany Pineda, Los Angeles Times, 14 Dec. 2020 Pacheco was Ali’s doctor, parked in his corner during the legend’s astronomical rise. Bryce Miller Columnist, San Diego Union-Tribune, 9 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astronomical.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of astronomical

1551, in the meaning defined at sense 1

History and Etymology for astronomical

see astronomy

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Time Traveler for astronomical

Time Traveler

The first known use of astronomical was in 1551

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Dictionary Entries Near astronomical

Astronomer Royal


astronomical clock

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Statistics for astronomical

Last Updated

23 Sep 2021

Cite this Entry

“Astronomical.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2021.

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More Definitions for astronomical



English Language Learners Definition of astronomical

: of or relating to astronomy
: extremely large


as·​tro·​nom·​i·​cal | \ ˌa-strə-ˈnä-mi-kəl How to pronounce astronomical (audio) \
variants: or astronomic \ -​ik \

Kids Definition of astronomical

1 : of or relating to astronomy
2 : extremely or unbelievably large

Other Words from astronomical

astronomically adverb

More from Merriam-Webster on astronomical

Nglish: Translation of astronomical for Spanish Speakers

Britannica English: Translation of astronomical for Arabic Speakers


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