Synonyms of astronomical in English:

astronomical


See US English definition of astronomical

See UK English definition of astronomical

See Spanish definition of astronómico

adjective

1‘they studied Stonehenge in terms of astronomical alignments’

SYNONYMS
celestial, planetary, stellar, astronomic, heavenly

2‘the sums he has paid out are astronomical’

SYNONYMS
huge, enormous, very large, very great, very big, prodigious, tremendous, monumental, mammoth, colossal, vast, gigantic, massive, epic, monstrous, terrific, titanic, towering, king-sized, king-size
substantial, considerable, sizeable, hefty, handsome, kingly, princely, lavish, generous, inordinate
informal astronomic, almighty, whopping, whopping great, thumping, thumping great, bumper, mega, monster, jumbo, humongous, serious, dirty great, rip-roaring
British informal whacking, whacking great, ginormous
ANTONYMS

insignificant, small