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
Synonyms of astronomical
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
There are countless ways to watch the upcoming total solar eclipse—Robb Report has curated a journey in Spain based around the astronomical phenomenon, in fact—but witnessing it from a luxury expedition ship in the remote waters of the Arctic is pinch-yourself stuff.
—
Rachel Cormack, Robb Report, 15 May 2026
Before the International Emergency Economic Powers Act (IEEPA) tariffs were struck down by the Supreme Court in February, China faced a tariff rate of 30 percent, down from astronomical triple-digit tariffs at certain points last year.
—Kate Nishimura, Footwear News, 15 May 2026
But expanding and upgrading these tracking systems to survey a million spacecraft would require an astronomical leap in capabilities.
—Kevin Holden Platt, Forbes.com, 14 May 2026
So while business may be booming for some locals around the Strait of Hormuz coastline, most Iranians continue to suffer with astronomical inflation that puts even basic goods out of reach for some.
—Khaled Wassef, CBS News, 13 May 2026
See All Example Sentences for astronomical
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Rachel Cormack, Robb Report, 15 May 2026
Before the International Emergency Economic Powers Act (IEEPA) tariffs were struck down by the Supreme Court in February, China faced a tariff rate of 30 percent, down from astronomical triple-digit tariffs at certain points last year.
—Kate Nishimura, Footwear News, 15 May 2026
But expanding and upgrading these tracking systems to survey a million spacecraft would require an astronomical leap in capabilities.
—Kevin Holden Platt, Forbes.com, 14 May 2026
So while business may be booming for some locals around the Strait of Hormuz coastline, most Iranians continue to suffer with astronomical inflation that puts even basic goods out of reach for some.
—Khaled Wassef, CBS News, 13 May 2026
See All Example Sentences for astronomical
Cite this Entry
“Astronomical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomical. Accessed 21 May. 2026.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
