| frivolous(adjective, brightness, lightness) |
| frolicsome(adjective, brightness, lightness) |
| fulgent(adjective, brightness, lightness) |
| fulgid(adjective, brightness, lightness) |
| fulgurant(adjective, brightness, lightness) |
| fulgurate(adjective, brightness, lightness) |
| fulgurous(adjective, brightness, lightness) |
| gairish(adjective, brightness, lightness) |
| garish(adjective, brightness, lightness) |
| gaseous(adjective, brightness, lightness) |
| gay(adjective, brightness, lightness) |
| glare(adjective, brightness, lightness) |
| glaring(adjective, brightness, lightness) |
| glassy(adjective, brightness, lightness) |
| gleam(adjective, brightness, lightness) |
| gleaming(adjective, brightness, lightness) |
| glistening(adjective, brightness, lightness) |
| glittering(adjective, brightness, lightness) |
| glossy(adjective, brightness, lightness) |
| glow(adjective, brightness, lightness) |