急きゅう減げん速そく

noun, noun or participle which takes 'suru', intransitive verb

sudden deceleration; rapid deceleration; sharp slowdown

Used for a sudden reduction in speed, especially in vehicles or machinery. The first gloss 'sudden declaration' appears to be a mis-entry; this word consistently means rapid deceleration.

• 急きゅう減げん速そくすると後こう続ぞく車しゃに追つい突とつされる危き険けんがある。

  Sudden deceleration risks being rear-ended by the following vehicle.

• この車くるまは急きゅう減げん速そく時じの安あん定てい性せいが高たかい。

  This car has high stability during rapid deceleration.