The phrase "astronomical amount" means a very large or enormous quantity. It suggests that the quantity is so big that it is comparable to the vastness of outer space or the numbers associated with celestial bodies. Full definition
They are not paid astronomical amount of money to do that. (justarsenal.com)
A lot of car owners often pay astronomical amounts for their auto insurance because they are not aware of all the discounts that they can avail to reduce their auto insurance premiums. (autoquotenow.com)
Some people go so far as to spend astronomical amounts of money to receive injections of growth hormone. (wellnessmama.com)