astronomical

adjective

ˌa-strə-ˈnä-mi-kəl How to pronounce astronomical (audio)
variants also astronomic
Definition of astronomicalnext
as in huge
unusually large a googol is an astronomical number, and the whimsical coinage of the name was intended to suggest that fact

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of astronomical This is without a doubt one of the most—if not the most—beautiful astronomical events a human can witness. — Phil Plait, Scientific American, 17 July 2026 The reflections from millions of debris shards would collectively increase light pollution worldwide, making astronomical observations more challenging even in the most remote locations on the planet. — David M. Klein, Washington Post, 16 July 2026 According to a new study published in Science, just such a planet, going by the decidedly unlyrical name LHS 1140b is at last known to exist, orbiting a star a mere 48 light years from Earth—down the block by astronomical standards. — Jeffrey Kluger, Time, 16 July 2026 SpaceX went public with an astronomical, multitrillion dollar valuation despite losing billions of dollars a quarter, effectively guaranteeing major volatility. — Victor Tangermann, Futurism, 15 July 2026 See All Example Sentences for astronomical
Recent Examples of Synonyms for astronomical
  1. huge
  2. enormous
  3. vast
  4. tremendous
  5. gigantic
  6. massive
  7. giant
  8. colossal
Adjective
  • Their fans have provided the electricity of this tournament, travelling in huge numbers, turning Kansas City, Atlanta, Miami and Dallas into oceans of blue and white.
    — Adam Crafton, New York Times, 20 July 2026
  • Notable quote There is a huge amount of animosity, every single day, thrown at trans kids.
    — Kayla Hayempour, NBC news, 19 July 2026
Definition of huge
Adjective
  • Manchester, meanwhile, faced enormous challenges in its comeback, from high levels of poverty and unemployment to poor education and crumbling infrastructure.
    — Hanna Ziady, CNN Money, 18 July 2026
  • This has enormous implications for how wars start, end, and are waged.
    — Phillips Payson O’Brien, The Atlantic, 18 July 2026
Definition of enormous
Adjective
  • DeepSeek challenged the conventional wisdom that developing an advanced AI model requires massive financial investment and vast computing power, and offered competitive pricing.
    — John Liu, CNN Money, 24 July 2026
  • Tech firms are now addressing this blind spot, deploying AI to analyze vast backlogs of inspection photos and notes, identifying defects like corrosion.
    — Dara-Abasi Ita, Forbes.com, 23 July 2026
Definition of vast
Adjective
  • That kind of mass results in a tremendous gravitational force that pushes in on the sun’s core to the tune of over 500 billion pounds per square inch.
    — Mike Lynch, Twin Cities, 19 July 2026
  • San Diego has devoted tremendous effort and resources to addressing homelessness, and many dedicated people work every day to help those in need.
    — U T Readers, San Diego Union-Tribune, 19 July 2026
Definition of tremendous
Adjective
  • The two lakes, which are essentially one gigantic reservoir separated by the Grand Canyon, hold just under 60% of the total water currently stored in the basin.
    — Laura Paddison, CNN Money, 22 July 2026
  • Also seen is Edric’s sinister pod sliding silently into one of the gigantic Guild Heighliner starships.
    — Jeff Spry, Space.com, 22 July 2026
Definition of gigantic
Adjective
  • Multiple people were injured Thursday after a Kenmore Air floatplane made an emergency landing off the Washington coast before catching fire, prompting a massive rescue operation, authorities said.
    — Michael Sinkewicz, FOXNews.com, 24 July 2026
  • DeepSeek challenged the conventional wisdom that developing an advanced AI model requires massive financial investment and vast computing power, and offered competitive pricing.
    — John Liu, CNN Money, 24 July 2026
Definition of massive
Adjective
  • Balloons float above an exploding castle, a giant peeks from behind the bushes and wizards throw flames in the foreground.
    — Phillip Molnar, San Diego Union-Tribune, 24 July 2026
  • An interesting implication of the spillover effect is that the end customers of consumer electronics devices are now effectively competing against giant data centers.
    — Srikanth Jagabathula, Fortune, 24 July 2026
Definition of giant
Adjective
  • The colossal billboards by the side of highways advertising legal representation.
    — Nick Miller, New York Times, 18 July 2026
  • This week, Gracie Abrams pens a tearjerker on mother-daughter relationships, Steve Lacy escapes the abyss of a breakup on a colossal double track, and Beabadoobee contemplates risk and reward on a fuzzy new single.
    — Rolling Stone, Rolling Stone, 17 July 2026
Definition of colossal

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Cite this Entry

“Astronomical.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/astronomical. Accessed 25 Jul. 2026.

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