1. having no limits or boundaries; infinite or limitless
2. not restrained or controlled; unrestricted

Examples

• Her enthusiasm for the project seemed unbounded.
• The universe appears to be unbounded in space.
• His unbounded energy impressed everyone at the meeting.
• The artist’s creativity was unbounded by conventional rules.
• They showed unbounded generosity to the charity.
• The child’s imagination was unbounded and wonderful.
• The ocean stretched before them, seemingly unbounded.