Definition of astronomical in English:

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Pronunciation: /ˌastrəˈnämək(ə)l/


1Relating to astronomy.
Example sentences
  • The Moon could also become the principal astronomical observation platform in the solar system.
  • The first known astronomical observations made by Galileo were carried out in 1604 for different reasons.
  • This discovery was of great importance to the astronomical world, but Hubble's greatest moment was yet to come.
planetary, stellar;
celestial, astral
2 informal (Of an amount) extremely large: he wanted an astronomical fee
More example sentences
  • It is spending astronomical amounts of money, alienating allies and further antagonizing opponents.
  • If you add all the money raised for cancer research each year, you will have an astronomical amount.
  • Even some of the more hardened observers are stunned by the astronomical amounts of money that can be made.
substantial, considerable, sizable, hefty;



Pronunciation: /ˌastrəˈnämik/
sense 2.
Example sentences
  • The most expensive city centre apartments sell for between £1m- £2m each - allowing developers to pay astronomic land prices.
  • But now there are fears that the astronomic cost of property will force away young or first-time buyers.
  • How can young people, burdened with student debt and the astronomic cost of property, put aside 15 per cent of their income as the experts advise?


Pronunciation: /ˈˌastrəˈnämək(ə)lē/
Example sentences
  • Well, astronomically, it tells me that there are millions of galaxies and potentially billions of planets.
  • Food was scarce and astronomically expensive.
  • Residents of these neighbourhoods, where poverty and unemployment is astronomically high, complain of frequent and arbitrary police violence.


Mid 16th century: via Latin from Greek astronomikos, from astronomia (see astronomy).

Words that rhyme with astronomical

agronomical, anatomical, comical, economical, gastronomical, physiognomical
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