Home › Words › T › temperamentalismtemperamentalismtemperamentalism · noun — A temperamental attitude or personality.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, temperamentalism ranks #36,264 of 43,042 for Qualifying.EtymologyFrom temperamental + -ism.nounA temperamental attitude or personality.Definitions & examples from Wiktionary (CC BY-SA 3.0).