-mə̇kəl, -ēk- adjective
or as·tro·nom·ic |astrə|nämik, |aas-, -mēk
Etymology: astronomical from Latin astronomic us + English -al; astronomic from Latin astronomicus, from Greek astronomikos, from astronomos astronomer + -ikos -ic
1. : of or belonging to astronomy
2. : suggestive of astronomy or of the magnitude of the forces and phenomena treated or of the quantities used by the astronomer
the change must come, if come it did, with astronomical slowness, like the cooling of the sun — W.B.Yeats
especially : enormously or inconceivably large or great in extent or degree
300 1600 , a truly astronomical number — G.A.Miller
voted astronomical sums for rearmament
inflation on an astronomical scale — Bruce Bliven b. 1889