[mass noun](formal)the state or quality of being ideal (正式)理想状态;理想性 the ideality of the island of Aran. 阿伦岛的理想状态。 ■the quality of expressing or being characterized by ideals 理想性 the loftiness and ideality of the Gettysburg Address. 葛底斯堡演说的崇高性与理想性。 ■[count noun](archaic)an ideal or idealized thing (古)理想 they commenced their married life with idealities about love. 他们怀着对爱情的种种理想开始了婚姻生活。