intensity āļāļ·āļāļāļ°āđāļĢ intensity āļāļ·āļāļāļ°āđāļĢ Exceptionally great concentration, power, or force.Physics The amount or degree of strength of electricity, light, heat, or sound per unit area or volume.The strength of a color, especially the degree to which it lacks its complementary color.See saturation.