1. (a.) Pertaining to the universe, and having special reference to universal law or order, or to the one grand harmonious system of things; hence; harmonious; orderly.

2. (a.) Pertaining to the solar system as a whole, and not to the earth alone.

3. (a.) Characteristic of the cosmos or universe; inconceivably great; vast; as, cosmic speed.

4. (a.) Rising or setting with the sun; -- the opposite of acronychal.

Gargantuan amplitudinous astronomical awesome boundless bulky colossal cosmic 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