giddy, fickle, flighty, and thoughtless
gleam, glimmer, glance, and glitter
gloomy, dismal, dark, and dejected
glorious, noble, exalted, and resplendent
glut, gorge, cloy, and satiate [cloy = too filling, rich, or sweet]
good, safe, venerable, and solid
government, law, order, and organization
grand, stately, dignified, and pompous
grave, contemplative, reserved, and profound
great, joyous, strong, and triumphant