Home › Words › R › retroreflectivityretroreflectivityretroreflectivity means the quality of being retroreflective.Among words judged in Lexicurio's Arena, retroreflectivity ranks #37,340 of 42,762 for Qualifying.EtymologyFrom retroreflective + -ity.nounThe quality of being retroreflective.Definitions & examples from Wiktionary (CC BY-SA 3.0).