Radiance/ˈreɪdiəns/ Definition 1 of 3Pro Tip 1/3Visual Brightness Radiance often refers to intense light that is very pleasing to the eyes. The radiance of the diamonds drew everyone's attention. Pro Tip 2/3Figurative Use Used metaphorically, 'radiance' implies a mood or situation that is vibrant or positive. Their happiness gave a radiance to the celebration. Pro Tip 3/3Intensity 'Radiance' can suggest intensity but free from harshness, often associated with warmth. The room was filled with the soft radiance from the fireplace.