Serious(a.) Grave in manner or disposition; earnest; thoughtful; solemn; not light, gay, or volatile.
Serious(a.) Really intending what is said; being in earnest; not jesting or deceiving.
Serious(a.) Important; weighty; not trifling; grave.
Serious(a.) Hence, giving rise to apprehension; attended with danger; as, a serious injury.
Words within seriousnesses