1 grave, solemn, earnest, unsmiling, poker-faced, straight-faced, sedate, sober, pensive, thoughtful; humourless, sombre, grim, dour, severe:
One should be wary of the person who is always serious, who cannot see the ludicrous side of life
2 grave, important, vital, dangerous, weighty, significant, momentous, crucial, consequential, life-and-death or life-or-death, urgent, pressing; no laughing matter, of consequence or moment or importance:
Things like the greenhouse effect and the hole in the ozone layer are serious concerns for all mankind
3 sincere, straightforward, not joking or fooling, genuine, honest:
Is he serious about wanting me to fetch him a left-handed wrench?
4 acute, critical, life-threatening, bad, dangerous, nasty, perilous, alarming, grave, severe, precarious:
His condition is serious and we might have to operate tonight. She had no idea that measles could be such a serious illness.
be, look, seem, sound | become, get
By this time the riots were getting serious.
extremely, particularly, really, very | fairly, quite | potentially
2 not joking
be, look, sound
Come on, be serious!
| become, turn
He became serious all of a sudden.
deadly, quite, very
Are you serious about resigning?
Random quote: No snowflake in an avalanche ever feels responsible.: VoltaireLatest queries: french, bewilder, apoplexy, visionary, supernova, bib, hairdo, dribs, touring, antidote, biceps, bigfoot, renewed, billfold, precision, wholemeal, initiative, binder, electromagnetic, serious,