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
- Brobdingnagian
- bumper
- colossal
- cosmic
- cosmical
- cyclopean
- elephantine
- enormous
- galactic
- gargantuan
- giant
- gigantesque
- gigantic
- grand
- herculean
- heroic
- heroical
- Himalayan
- huge
- humongous
- humungous
- immense
- jumbo
- king-size
- king-sized
- leviathan
- mammoth
- massive
- mega
- mighty
- monster
- monstrous
- monumental
- mountainous
- oceanic
- pharaonic
- planetary
- prodigious
- super
- super-duper
- supersize
- supersized
- titanic
- tremendous
- vast
- vasty
- walloping
- whacking
- whopping
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 rare astronomical event, also known as the aurora borealis, may occur late Friday and into Saturday, the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center announced on Wednesday.
—
Hanh Truong, Sacramento Bee, 31 May 2024
Summer in the cosmos is off to a spectacular start due to the astronomical activity taking place, from the upcoming full moon display to a rare planetary alignment.
—Skyler Caruso, Peoplemag, 29 May 2024
Most recently, technological glitches connected with Ticketmaster’s handling of tickets for Taylor Swift’s Eras tour infuriated fans and provoked another congressional hearing; Ticketmaster blamed the fiasco on scalpers and astronomical demand for the tour.
—Michael Hiltzik, Los Angeles Times, 29 May 2024
Before skywatchers begin their countdown for the brief planetary alignment expected next month, some astronomical debunking has proved there may be less of a sky show after all.
—Leah Sarnoff, ABC News, 28 May 2024
See all Example Sentences for astronomical 
Hanh Truong, Sacramento Bee, 31 May 2024
Summer in the cosmos is off to a spectacular start due to the astronomical activity taking place, from the upcoming full moon display to a rare planetary alignment.
—Skyler Caruso, Peoplemag, 29 May 2024
Most recently, technological glitches connected with Ticketmaster’s handling of tickets for Taylor Swift’s Eras tour infuriated fans and provoked another congressional hearing; Ticketmaster blamed the fiasco on scalpers and astronomical demand for the tour.
—Michael Hiltzik, Los Angeles Times, 29 May 2024
Before skywatchers begin their countdown for the brief planetary alignment expected next month, some astronomical debunking has proved there may be less of a sky show after all.
—Leah Sarnoff, ABC News, 28 May 2024
See all Example Sentences for astronomical
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'astronomical.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Dictionary Entries Near astronomical
Cite this Entry
“Astronomical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astronomical. Accessed 5 Jun. 2024.
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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