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Definitions

astronomical

[as-truh-nom-i-kuhl] / ˌæs trəˈnɒm ɪ kəl /
ADJECTIVE
huge
Synonyms
STRONGEST
colossal considerable enormous gigantic humongous monumental sizeable tremendous vast whopping
STRONG
astronomic
WEAK
epic ginormous jumbo mammoth massive mega monster prodigious very big very large
Antonyms
STRONGEST
insignificant little small teeny tiny unimportant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers and a growing number of companies say that space promises to deliver astronomical benefits.

From MarketWatch • Mar. 31, 2026

These are astronomical figures that any country in the world would struggle to pay - the entire US federal budget for 2025 was $7.1tr.

From BBC • Mar. 27, 2026

Thanks to the astronomical demand for its chips prompted by the global AI boom, Nvidia generates more profit than almost any other public company on the planet.

From The Wall Street Journal • Mar. 24, 2026

"This study shows that the astronomical processes we model on computers are shaping galaxies like NGC 1365 over billions of years."

From Science Daily • Mar. 23, 2026

As a bonus, Hooke filled a space at the end of the book with drawings based on some of his astronomical observations.

From "The Scientists" by John Gribbin

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.