synonyms for serious

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Nature

Here are several synonyms for "serious," grouped by common meanings:

General Synonyms- Critical- Grave- Important- Meaningful- Momentous-

Profound- Severe- Significant- Substantial- Thoughtful- Weighty

Synonyms for "Serious" as Grave or Severe- Acute- Alarming- Bad-

Dangerous- Extreme- Grievous- Worrying

Synonyms for "Serious" as Important or Significant- Deep- Difficult- Far-

reaching- Fateful- Grim- Major- Pressing- Urgent

Synonyms for "Serious" as Thoughtful or Reflective- Careful- Detailed-

In-depth- Meditative- Pensive- Reflective

Other Common Synonyms- Earnest- Sedate- Sober- Solemn- Staid- Stern-

Unhumorous- Unsmiling

These synonyms can be used depending on the context—whether you mean something is important, grave, thoughtful, or solemn.