adjective “serious”
base form serious (more/most)
- significant and possibly with bad consequences
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The doctor said the injury is serious and needs immediate attention.
- sincere; not joking
Believe me, I was serious when I mentioned the deadline.
- mature; not silly
Can you be serious now, please?
- (of media) requiring careful thought, not just for fun
The doctor gave me a serious warning about my health.
- (of a relationship) committed and dedicated to each other
They have been dating for two years and are now in a serious relationship.
- (informal) used to emphasize that there is a lot of something
She has a serious collection of vintage records.