View synonyms for astronomical


[ as-truh-nom-i-kuhl ]


  1. of, relating to, or connected with astronomy.
  2. extremely large; exceedingly great; enormous:

    It takes an astronomical amount of money to build a car factory.


/ ˌæstrəˈnɒmɪkəl /


  1. enormously large; immense
  2. of or relating to astronomy

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Derived Forms

  • ˌastroˈnomically, adverb

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Other Words From

  • as·tro·nom·i·cal·ly adverb
  • non·as·tro·nom·ic adjective
  • non·as·tro·nom·i·cal adjective
  • non·as·tro·nom·i·cal·ly adverb

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Word History and Origins

Origin of astronomical1

First recorded in 1550–60; from Latin astronomic(us) (from Greek astronomikós ) + -al 1; astronomy, -ic

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Example Sentences

Once infected, they churn out “astronomical numbers” of viral particles, Ehre says, potentially propelling the particles deeper into the lungs, which can cause pneumonia, or out into the air where they can infect others.

So the site may make more sense as a terrifying journey to a cave-like underworld than as an astronomical observatory.

The big question though, is just how long this astronomical growth will last.

From Digiday

The upshot is that smaller blobs mean a higher inferred cosmic expansion rate — bringing the inferred rate much closer to measurements of how fast supernovas and other astronomical objects actually seem to be flying apart.

The latest such discovery is an enormous Mayan structure, more than a kilometer long, 3,000 years old, and seemingly used for astronomical observations.

Since last year, public approval for the ban has shot up from an already astronomical 91 percent to 93 percent.

More than likely, however, this is just a rare and beautiful astronomical event to be enjoyed.

Data from 107 galaxies out of the preliminary sample is freely available to the astronomical community for study.

No amount of money could meet his demands, making the damages for his suit “priceless”—hence the astronomical sum.

A little astronomical forensics suggests that these objects used to be a binary: two stars in mutual orbit.

Let us suppose that the Astronomer Royal claimed infallibility, not only in matters astronomical, but also in politics and morals.

Science began with astronomy, and the first instruments which men contrived for the purpose of investigation were astronomical.

He made several astronomical discoveries, and improved the air pump.

But we know that Aries is meant, from purely astronomical considerations.

Those who reason without astronomical knowledge will never reach the truth.


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Astronomer Royalastronomical clock