The source of sunburn's dermatological damage is ultraviolet (UV) rays, a more energetic form of light than what we use for vision. The UV we usually contend with comes in two flavors: UVA, which primarily causes wrinkling, and the stronger UVB, which produces the telltale signs of sunburn.
Dictionary entry overview: What does inscrutable mean? â¢ INSCRUTABLE (adjective) The adjective INSCRUTABLE has 1 sense: 1. of an obscure nature Familiarity information: INSCRUTABLE used as an adjective is very rare.
impossible to interpret or understand The definition of inscrutable is  impossible to interpret or understand. It means something that is mysterious or something that is incapable of being scrutinized or investigated. The definition of inscrutable is impossible to interpret or understand.