Definition of serious
1 : thoughtful or subdued in appearance or manner : sober a quiet, serious girl
2a : requiring much thought or work serious studyb : of or relating to a matter of importance a serious play
4a : not easily answered or solved serious objectionsb : having important or dangerous possible consequences a serious injury
5 : excessive or impressive in quality, quantity, extent, or degree serious stereo equipment making serious money serious drinking
Examples of serious in a sentence
“You sound terrible.” “It's just a bad cold. Nothing serious.”
For my brother, not going to college was a serious mistake.
Crime is a serious problem in this neighborhood.
The team is a serious contender for the championship.
If you want to quit smoking, you have to make a serious effort.
They had a serious conversation about their relationship.
a serious novel about modern life
The story raises serious questions about our system of justice.
Dog shows are a serious business.
She is a serious cyclist who rides 200 miles each week.
Origin and Etymology of serious
Middle English seryows, from Anglo-French or Late Latin; Anglo-French serious, from Late Latin seriosus, alteration of Latin serius weighty, serious; probably akin to Old English swǣr heavy, sad
First Known Use: 15th century
Synonym Discussion of serious
SERIOUS Defined for English Language Learners
Definition of serious for English Language Learners
: having an important or dangerous possible result
: involving or deserving a lot of thought, attention, or work
: giving a lot of attention or energy to something
SERIOUS Defined for Kids
Definition of serious for Students
1 : not joking or funny a serious drama
2 : being such as to cause distress or harm a serious accident
3 : thoughtful or quiet in appearance or manner a serious person
4 : requiring much thought or work a serious task
Medical Definition of serious
: having important or dangerous possible consequences a serious injury
Seen and Heard
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