Prodigious

pro·di·gious
prəˈdijəs/
adjective

1.  remarkably or impressively great in extent, size, or degree.
"the stove consumed a prodigious amount of fuel"


2.  archaic
unnatural or abnormal.
"rumors of prodigious happenings, such as monstrous births"

synonyms:   enormous, huge, colossal, immense, vast, great, massive, gigantic, mammoth, tremendous, inordinate, monumental