(a.) Pertaining to the universe; inconceivably vast; universal\.

Gargantuan amplitudinous astronomical awesome boundless bulky colossal cosmogonal cosmogonic cosmologic enormous extensive galactic gigantic huge immeasurable immense infinite king-size large mammoth massive massy monster monstrous monumental mountainous outsize overgrown prodigious sizable spacious stupendous titanic tremendous universal vast voluminous weighty