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
However, astronomical price hikes for imports from the UK and European Union—$10,129 and $2,455, respectively—have come amid price declines for countries such as China, Canada, and South Korea.
—
Sasha Rogelberg, Fortune, 22 July 2025
Beyond the research's importance for our understanding of star clusters and their evolution, the team's work demonstrates the power of combining simulations with astronomical observations.
—Robert Lea, Space.com, 21 July 2025
Investors pumped money into the riskiest assets, lifting money-losing tech upstarts to astronomical valuations.
—Ari Levy, CNBC, 18 July 2025
These will include the big bang of guidance documents and policy statements, the procurement and contracting hypergiant, and astronomical spending and subsidies—for starters.
—Clyde Wayne Crews Jr, Forbes.com, 14 July 2025
See All Example Sentences for astronomical
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Sasha Rogelberg, Fortune, 22 July 2025
Beyond the research's importance for our understanding of star clusters and their evolution, the team's work demonstrates the power of combining simulations with astronomical observations.
—Robert Lea, Space.com, 21 July 2025
Investors pumped money into the riskiest assets, lifting money-losing tech upstarts to astronomical valuations.
—Ari Levy, CNBC, 18 July 2025
These will include the big bang of guidance documents and policy statements, the procurement and contracting hypergiant, and astronomical spending and subsidies—for starters.
—Clyde Wayne Crews Jr, Forbes.com, 14 July 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 29 Jul. 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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