astronomical
Americanadjective
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of, relating to, or connected with astronomy.
-
extremely large; exceedingly great; enormous.
It takes an astronomical amount of money to build a car factory.
adjective
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enormously large; immense
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of or relating to astronomy
Other Word Forms
- astronomically adverb
- nonastronomic adjective
- nonastronomical adjective
- nonastronomically adverb
Etymology
Origin of astronomical
First recorded in 1550–60; from Latin astronomic(us) (from Greek astronomikós ) + -al 1; astronomy, -ic
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Felix Salmon, Elizabeth Spiers, and Emily Peck discuss what this deal says about the private and public markets and try to wrap their heads around the astronomical valuations of OpenAI and SpaceX.
From Slate • Apr. 4, 2026
Researchers and a growing number of companies say that space promises to deliver astronomical benefits.
From MarketWatch • Mar. 31, 2026
The date of the astronomical equinox also tends to naturally fluctuate between 20 and 21 March.
From BBC • Mar. 29, 2026
"This study shows that the astronomical processes we model on computers are shaping galaxies like NGC 1365 over billions of years."
From Science Daily • Mar. 23, 2026
The cost of failure in the air was astronomical, in lives and dollars.
From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
