astronomical
adj. B2 Upper Intermediate US //ˌæstɹəˈnɑmɪkəɫ// UK //ɐstɹənˈɒmɪkəl// as·tro·nom·i·cal
adj. extremely large in amount or size. You use it to describe numbers or costs that are surprisingly high.
adj. extremely large in amount, scale, or degree; often used hyperbolically to emphasize magnitude.
The repair costs were astronomical.
The company faced astronomical debts after the market crash.
The astronomical distances between stars make direct travel impossible with current technology.
Attested since at least 1550, from Middle French astronomique or directly from Latin astronomicus, from Ancient Greek ἀστρονομικός (astronomikós).