serious, grave, solemn, sedate, staid, sober, earnest mean not light or frivolous. serious implies a concern for what really matters.

Please don't laugh - I'm being serious. He was wearing a very serious expression and I knew something was wrong. On the surface it's a very funny novel but it does have a more serious underlying theme.

SERIOUS definition: of, showing, or characterized by deep thought. See examples of serious used in a sentence.

Definition of serious adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If someone is serious about something, they are sincere about what they are saying, doing, or intending to do. You really are serious about this, aren't you?

Any important situation is serious, and this word is also the opposite of humorous and playful.

Find 173 different ways to say SERIOUS, along with antonyms, related words, and example sentences at Thesaurus.com.

1. of, showing, or characterized by deep thought. 2. grave or somber, as in character, disposition, or mood.

Browse the complete thesaurus entry for Serious, including synonyms and antonyms, and related words.

Serious can be used to describe something that is significant, grave or of significant importance. It can be characterized by a lack of frivolity, playfulness, or lightheartedness. It often relates to situations or …