1. not relating to or involving astronomy or the study of celestial objects and space
2. not extremely large or enormous in amount or degree
Usage: informal

Examples

• The museum's nonastronomical exhibits focus on natural history and geology.
• The price of the used car was nonastronomical, making it affordable for most buyers.
• Her research interests are nonastronomical, centered instead on marine biology.
• The company offered a nonastronomical salary increase of 3 percent.
• They chose a nonastronomical venue for the wedding reception.