serious adj.
1 bad/dangerous
VERBS be, look, seem, sound | become, get By this time the riots were getting serious. | remain
ADV. extremely, particularly, really, very | fairly, quite | potentially
2 not joking
VERBS be, look, sound Come on, be serious! | become, turn He became serious all of a sudden.
ADV. deadly, quite, very
PREP. about Are you serious about resigning?