1. extremely light in weight

1. a very light aircraft with minimal structure, typically for recreational flying
Usage: aviation

Examples

• The ultralight backpack weighs only two pounds when empty.
• She chose ultralight camping gear for the long hiking trip.
• The pilot flew his ultralight aircraft over the countryside.
• Ultralight materials are essential for space exploration.
• He learned to fly in a single-seat ultralight.
• The ultralight fabric made the jacket perfect for travel.
• Many ultralight enthusiasts build their own aircraft.