Meaning of SERIOUS in English

SERIOUS

/ ˈsɪəriəs; NAmE ˈsɪr-/ adjective

BAD

1.

bad or dangerous :

a serious illness / problem / offence

to cause serious injury / damage

They pose a serious threat to security.

The consequences could be serious.

NEEDING THOUGHT

2.

needing to be thought about carefully; not only for pleasure :

a serious article

a serious newspaper

It's time to give serious consideration to this matter.

IMPORTANT

3.

that must be treated as important :

We need to get down to the serious business of working out costs.

The team is a serious contender for the title this year.

NOT SILLY

4.

thinking about things in a careful and sensible way; not silly :

Be serious for a moment; this is important.

I'm afraid I'm not a very serious person.

NOT JOKING

5.

serious (about sb/sth) | serious (about doing sth) sincere about sth; not joking or meant as a joke :

Believe me, I'm deadly (= extremely) serious .

Don't laugh, it's a serious suggestion.

Is she serious about wanting to sell the house?

He's really serious about Penny and wants to get engaged.

( informal )

You can't be serious! (= you must be joking)

You think I did it? Be serious! (= what you suggest is ridiculous)

LARGE AMOUNT

6.

( informal ) used to emphasize that there is a large amount of sth :

You can earn serious money doing that.

I'm ready to do some serious eating (= I am very hungry) .

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SYNONYMS

serious

grave ♦ earnest ♦ solemn

These words all describe sb who thinks and behaves carefully and sensibly, but often without much joy or laughter.

serious

thinking about things in a careful and sensible way; not laughing about sth:

He's not really a very serious person.

Be serious for a moment; this is important.

grave

( rather formal ) (of a person) serious in manner, as if sth sad, important, or worrying has just happened:

He looked very grave as he entered the room.

earnest

serious and sincere:

The earnest young doctor answered all our questions.

solemn

looking or sounding very serious, without smiling; done or said in a very serious and sincere way:

Her expression grew solemn.

I made a solemn promise that I would return.

PATTERNS AND COLLOCATIONS :

a(n) serious / grave / earnest / solemn expression / face

a(n) serious / earnest conversation / talk

a serious / solemn mood / atmosphere

to be / become serious / grave / earnest / solemn

to look / sound serious / grave / earnest / solemn

very / extremely serious / grave / earnest / solemn

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WORD ORIGIN

late Middle English : from Old French serieux or late Latin seriosus , from Latin serius earnest, serious.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.