1. comparative form of weighty; having more physical weight or mass
2. comparative form of weighty; more important, serious, or significant

Examples

• The second box was weightier than the first one.
• She carried the weightier burden of responsibility.
• The professor assigned weightier topics for the final essays.
• His second novel dealt with weightier themes than his debut.
• The committee faced weightier decisions this quarter.
• The gold bars were weightier than expected.
• These are weightier matters that require careful consideration.