Copyright © 2026 Kotomora. All Rights Reserved.
反作用 (はんさよう, hansayou) Japanese meaning: reaction | Kotomora
Report an issue with this page
が
等ひと
しく
、
向む
き
が
反はん
対たい
で
ある
。
Action and reaction are equal in magnitude and opposite in direction.
The rapid reforms produced an unexpected backlash.
Kanji 作 make, production, prepare 用 utilize, business, service Related words 反応 is the broader word for any response (physical, chemical, or emotional), while 反作用 specifically denotes an opposing or counter-effect, often in physics.
反作用 is the precise physics term for a reaction force paired with an action (作用・反作用), while リアクション is a looser, more general word for 'reaction' in this technical sense.
Etymology A Sino-Japanese compound combining 反, associated with opposition or reversal, and 作用, meaning action, operation, or effect. The spelling transparently conveys an effect that occurs in response or opposition.
The abrupt policy change produced a backlash in society.
