Serious | Mean of serious in English Dictionary

/ˈsirijəs/

• having an important or dangerous possible result
1. a serious injury/illness/condition
2. “You sound terrible.” “It's just a bad cold. Nothing serious.”
3. serious risks
4. For my brother, not going to college was a serious mistake.
5. Crime is a serious problem in this neighborhood.
• involving or deserving a lot of thought, attention, or work
1. a serious study
2. The team is a serious contender for the championship.
3. If you want to quit smoking, you have to make a serious effort.
4. They had a serious conversation about their relationship.
5. a serious novel about modern life
6. The story raises serious questions about our system of justice.
7. Dog shows are a serious business.
• giving a lot of attention or energy to something
1. serious musicians
2. She is a serious cyclist who rides 200 miles each week.
3. Serious journalists do not pry into the personal lives of famous people.
4. When it comes to fishing, he's very serious. = He's very serious about fishing.
5. My sister is serious about her grades.

• not joking or funny
1. a serious story/opera
2. Don't laugh. I'm serious!
3. Can you be serious just this once? This is important.
4. He is serious about moving down South. [=he truly wants/intends to move down South]
5. “He says he won't do it.” “Are you serious?”
6. “I'm joining the army.” “You can't be serious.” [=you have to be joking; I can't believe that you're really joining the army]
• large or impressive in quality or amount
1. After business school, he started making some serious money. [=he started making a large amount of money]
2. These are serious shoes!
3. They did some serious drinking at the bar. [=they drank a lot]
• having or involving strong romantic feelings
1. Their romance is quite serious. They're even talking about marriage.
2. We've dated a few times, but it's nothing serious.
3. They are a serious couple.
4. He's never really had a serious relationship with a woman.
5. She and her boyfriend are serious about each other.
• thoughtful or quiet in appearance or manner
1. He looks like a serious person.
2. You look serious. What's the matter?