i Register
In some senses, immane is marked as archaic. Watch for register when choosing this word.
adj
Very large; huge; vast.
There is only one holistic system of systems, one vast and immane, interwoven, interacting, multivariate, multinational dominion of dollars. Petro-dollars, electro-dollars, multi-dollars, reichmarks, rins, rubles, pounds, and shekels.
[…] if this gentleman could have been purged of an immane conceit of himself and of his own worth, and made clean from his disaffection to the crown and monarchy of England, which always warped his engagements towards the sectarian and republican model, and made him restless[…]
Monstrous in character; inhuman; atrocious; fierce.
so immane a man