unrestrained

not subject to restraint

• “unrestrained laughter”

extravagant or extreme

• “the inhumanity of his untempered principles” M.S.Dworkin

marked by uncontrolled excitement or emotion

• “a crowd of delirious baseball fans”
• “something frantic in their gaiety”
• “a mad whirl of pleasure”

richly and brilliantly colorful