astronomically
Word family
- astronomynounB2
- astronomernounB2
- astronomicaladjectiveC1
Synonym discussion
Sense: adverb/1
'Astronomically' suggests numbers so huge that they almost stop feeling real, and it often appears with prices, costs, salaries, or distances. 'Enormously' is the most neutral of the three and can describe size, effect, or amount without extra drama. 'Hugely' is more conversational and lighter in tone, so it fits speech and casual writing more easily. 'Prohibitively' is narrower: it does not simply say that something is very expensive, but that the price prevents action. A concert ticket can be astronomically expensive and still sell out; a fee that is prohibitively high stops many people from paying. You might say that house prices rose astronomically, that a singer is enormously popular, or that tuition is prohibitively expensive for many families.
Etymology
Built from 'astronomy' plus the adjective ending '-ical' and the adverb ending '-ly'. 'Astronomy' reached English through Latin from Greek words meaning 'star' and 'arrangement or law'. Because of that history, the older sense means 'in terms of astronomy'. The later figurative sense grew from the idea of numbers so vast that they feel as distant and immense as the stars.