反応性 はんのうせい Meanings Noun reactivity Kanji 反 anti-. Read as ハン. 応 respond. Read as ノウ. 性 nature. Read as セイ. Words containing 反応性 自己反応性物質 (じこはんのうせいぶっしつ) self-reactive substance Word lists Chemistry Jinuma: Japanese Dictionary · Word lists