astronomical
adjective
as·tro·nom·i·cal
ˌa-strə-ˈnä-mi-kəl 
variants
or less commonly astronomic
1
: of or relating to astronomy
astronomical observations
2
: enormously or inconceivably large or great
astronomical numbers
an astronomical price
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
The costs on the first night alone—before any real treatment—were astronomical.
—
Nicholas Creel, MSNBC Newsweek, 23 May 2025
Life in Egypt would be safer, but border authorities were charging astronomical sums for visas.
—Nicolas Niarchos, New Yorker, 19 May 2025
Belgian glaciologist Jean-Louis Tison, featured in the film, explains three astronomical influences on Earth’s natural climate cycles: its orbit, axial tilt and wobble.
—Marcus D. Smith, Sacbee.com, 17 May 2025
To our delight, the staples of their makeup bags don’t have astronomical price tags.
—Izzy Baskette, People.com, 16 May 2025
See All Example Sentences for astronomical
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Nicholas Creel, MSNBC Newsweek, 23 May 2025
Life in Egypt would be safer, but border authorities were charging astronomical sums for visas.
—Nicolas Niarchos, New Yorker, 19 May 2025
Belgian glaciologist Jean-Louis Tison, featured in the film, explains three astronomical influences on Earth’s natural climate cycles: its orbit, axial tilt and wobble.
—Marcus D. Smith, Sacbee.com, 17 May 2025
To our delight, the staples of their makeup bags don’t have astronomical price tags.
—Izzy Baskette, People.com, 16 May 2025
See All Example Sentences for astronomical
Cite this Entry
“Astronomical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomical. Accessed 4 Jun. 2025.
Copy CitationKids Definition
astronomical
adjective
as·tro·nom·i·cal
ˌas-trə-ˈnäm-i-kəl
variants
also astronomic
1
: of or relating to astronomy
2
: extremely or unbelievably large
the cost was astronomical
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