1. in a bright, glowing manner; with brilliant light or energy
2. in a way that shows great happiness, health, or beauty

Examples

• The sun shone radiantly through the morning clouds.
• She smiled radiantly when she received the good news.
• The bride looked radiantly beautiful on her wedding day.
• The stars gleamed radiantly in the clear night sky.
• He spoke radiantly about his new job opportunity.
• The flowers bloomed radiantly in the spring garden.