Synonyms for serious

• (adj) earnest (similar term), sincere (similar term), solemn (similar term), grave (similar term), sedate (similar term), sober (similar term), solemn (similar term), overserious (similar term), real (similar term), thoughtful (similar term), serious-minded (similar term), sobering (similar term), solid (similar term), frivolous (antonym)
  
  
• (adj) important (similar term), of import (similar term)
  
  
• (adj) dangerous, grave, grievous, severe, life-threatening, critical (similar term)
  
  
• (adj) good, intellectual (similar term)
  
  
• (adj) unplayful, sober, playful (antonym)
  
  
• (adj) difficult (similar term), hard (similar term)
  
  

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