[tem.pered] adj (14c) 1 a: having the elements mixed in satisfying proportions: temperate b: qualified, lessened, or diluted by the mixture or influence of an additional ingredient: moderated "a pale gleam of ~ sunlight fell through the leaves --W. H. Hudson d.1922"
2: treated by tempering; esp, of glass: treated so as to impart increased strength and the property of shattering into pellets when broken
3: having a specified temper--used in combination "short-tempered"
4: conforming to adjustment by temperament--used of a musical interval, intonation, semitone, or scale