Meaning & use

astronomical

adjective·Academic

Relating to astronomy, or so large in scale that it seems almost impossible to measure.

See it in a sentence

The bridge was rebuilt at an astronomical cost that shocked local taxpayers.

Astronomical observations from the new telescope revealed several previously unknown galaxies.

A note on using this word

Astronomical is far more common than astronomic in both technical and figurative use, especially when describing large numbers.

Words with a similar meaning

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

tiny

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