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
One approach is collecting astronomical observations and then training a large neural network model on these data.
—
Eric Novik, Forbes, 14 Mar. 2025
Continue reading so see which cars will land you with some truly astronomical costs.
—Ben Kesslen, Quartz, 14 Mar. 2025
The easiest way to ensure that eclipse photos, or images of any other astronomical event, are the real deal is to take them yourself!
—Robert Lea, Space.com, 13 Mar. 2025
In astronomical terms, 100 million years is pretty recent.
—Laura Baisas, Popular Science, 12 Mar. 2025
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Eric Novik, Forbes, 14 Mar. 2025
Continue reading so see which cars will land you with some truly astronomical costs.
—Ben Kesslen, Quartz, 14 Mar. 2025
The easiest way to ensure that eclipse photos, or images of any other astronomical event, are the real deal is to take them yourself!
—Robert Lea, Space.com, 13 Mar. 2025
In astronomical terms, 100 million years is pretty recent.
—Laura Baisas, Popular Science, 12 Mar. 2025
See All Example Sentences for astronomical
Articles Related to astronomical
Cite this Entry
“Astronomical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomical. Accessed 23 Mar. 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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