backlash
UK: ˈbaklaʃ | US: ˈbækˌlæʃ
n. 1. A strong negative reaction to a recent event or social/political change.
n. 2. (Mechanical) Sudden backward movement or play in machinery due to loose fittings.
vi. 3. To react with sudden opposition or resistance.
The word "backlash" originated in the early 19th century, combining "back" (Old English bæc, meaning "rearward") and "lash" (Middle English lasshen, meaning "to strike violently"). Initially used in mechanical contexts to describe gears slipping backward, it evolved metaphorically by the 20th century to describe societal reactions—mirroring the "snapback" motion of a whip. The dual meanings highlight physical recoil and human resistance.
The policy change provoked a fierce backlash from activists.
The loose gear caused a loud backlash in the machine.
Voters began to backlash against the proposed tax reforms.
Social media amplified the cultural backlash to the controversial film.
Engineers minimized backlash in the design to ensure precision.