軽さ かるさ Meanings Noun lightness See also: 重さ (おもさ). Kanji 軽 lightweight. Read as かるい. Words containing 軽さ 存在の耐えられない軽さ (そんざいのたえられないかるさ) The Unbearable Lightness of Being (1984 novel by Milan Kundera) Jinuma: Japanese Dictionary · Word lists