Astronomical
Astronomical adjective - Unusually large.
Costly and astronomical are semantically related. In some cases you can use "Costly" instead an adjective "Astronomical".
Costly
Costly adjective - Commanding a large price.
Astronomical and costly are semantically related. Sometimes you can use "Astronomical" instead an adjective "Costly".
Mutual synonyms
Cite this Source
Costly and Astronomical. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/astronomical/costly
Astronomical & Costly. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/astronomical/costly>.
Costly or Astronomical. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/astronomical/costly.
Google Ngram Viewer shows how "astronomical" and "costly" have occurred on timeline