list of synonyms of word serious

• 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)

• important (similar term)
• of import (similar term)

• dangerous
• grave
• grievous
• severe
• life-threatening
• critical (similar term)

• good
• intellectual (similar term)

• unplayful
• sober
• playful (antonym)

• difficult (similar term)
• hard (similar term)