Serious

word

1. Adjective

Grave in manner or disposition; earnest; thoughtful; solemn; not light, gay, or volatile.

2. Adjective

Really intending what is said; being in earnest; not jesting or deceiving.

3. Adjective

Important; weighty; not trifling; grave.

4. Adjective

Hence, giving rise to apprehension; attended with danger; as, a serious injury.
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