Grave in manner or disposition; solemn; not light, gay or volatile; as a serious man; a serious habit or disposition.

Really intending what is said; being in earnest; not jesting or making false pretense. Are you serious, or in jest?

Important; weighty; not trifling. The holy Sciptures bring to your ears the most serious things in the world. Young.

Particularlyattentive to religioul concerns or one’s own religious state.