ultralight

adj

1. (not-comparable)Extremely light; weighing very little.

noun

1. An aircraft that weighs very little.

   “The last time I was at Victoria Falls, ultralights and hang gliders, small planes and helicopters, hot-air balloons and bungee jumpers, gorge swingers and rappelers and cable sliders were jostling for air space above the falls and the canyons that slice through the black basalt below them.”