astronomical

C2+ Topic:Describing Qualities

US /ˌæstrəˈnɑmɪkəl/ UK /ˌæstrəˈnɒmɪkəl/ See IPA manual

adj

Meanings

1

adj
extremely large; relating to astronomy

The cost of the rescue ran into astronomical sums.

Thesaurus

Synonyms

1 adj · extremely large; relating... enormous colossal immense vast gigantic huge astronomic

Opposites

tiny minuscule negligible small

Word family

Forms astronomically

Derived forms astronomically

Related forms astronomy astronomer astronomic astral

Etymology

From astronomy + -ical, from Ancient Greek astronomía ('star-arrangement'), from astron ('star') + nomos ('law, arrangement'); the figurative sense of 'enormous' arises from the immense scale of astronomical distances.

astronomía Ancient Greek astron Ancient Greek *h₂stḗr Proto-Indo-European

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Topics

Describing Qualities Word Formation & Derivatives

# astronomical

**Type:** Word
**Level:** C2+
**Part of speech:** adj
**IPA (US):** ˌæstrəˈnɑmɪkəl
**IPA (UK):** ˌæstrəˈnɒmɪkəl

## Meanings
1. extremely large; relating to astronomy

## Examples
- The cost of the rescue ran into astronomical sums.

## Synonyms
- enormous
- colossal
- immense
- vast
- gigantic
- huge
- astronomic

## Antonyms
- tiny
- minuscule
- negligible
- small

## Derived Forms
- astronomically

## Related Forms
- astronomy
- astronomer
- astronomic
- astral

## Roots and Affixes
- Root: astronomía
- Root: astron
- Root: *h₂stḗr

## Etymology
From astronomy + -ical, from Ancient Greek astronomía ('star-arrangement'), from astron ('star') + nomos ('law, arrangement'); the figurative sense of 'enormous' arises from the immense scale of astronomical distances.

## AI Etymology
Astronomical is an adjective meaning "extremely large; relating to astronomy". Historically, it is from astronomy + -ical, from Ancient Greek astronomía ('star-arrangement'), from astron ('star') + nomos ('law, arrangement'); the figurative sense of 'enormous' arises from the immense scale of astronomical distances. The visible construction is part of the etymology: astronomical is not just an unanalyzed simple word. The semantic history matters here: the earlier use is the starting point, and the modern sense, "extremely large; relating to astronomy", is the later or specialized English value. The historical chain links Ancient Greek astronomía, Ancient Greek astron, and Proto-Indo-European *h₂stḗr. Close English family members include astronomically, astronomy, astronomer, astronomic, and astral.

## Topics
- Describing Qualities
- Word Formation & Derivatives

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