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

SERIOUS definition: 1. severe in effect; bad: 2. very ill 3. not joking or intended to be funny: . Learn more.

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

noun that which is of importance, grave, critical, or somber. You have to learn to separate the serious from the frivolous.

Find 1143 different ways to say SERIOUS, along with antonyms, related words, and example sentences at Thesaurus.com.

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

Discover everything about the word "SERIOUS" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.