GRAMMAR DETAIL
た弾みで
Indicates that the momentary force or impetus of the preceding movement caused an unexpected event.
Examples
急に立ち上がった弾みで、机の角に膝をぶつけた。
As I suddenly stood up, the momentum made me bang my knee against the corner of the desk.
Words used
急に振り向いた弾みで、眼鏡が落ちた。
When I suddenly turned around, the motion caused my glasses to fall off.
Words used
Study notes
1. Origins, structure, and basic meaning
- Structure: Follow a verb's ta-form with
弾みでto describe an unexpected event caused by the momentary force or motion of the preceding action. - Basic usage:
急に振り向いた弾みで、眼鏡が落ちた。means that the sudden turning movement caused the glasses to fall off.
2. Common pitfalls and similar expressions
- Reading and ta-form connection
弾みis readはずみ. Connect it to a ta-form, as in振り向いた弾みで, not振り向いて弾みで.
- Causation compared with たとたん
立ち上がったとたんfocuses on the moment immediately after standing up.立ち上がった弾みでhighlights the movement itself causing the following outcome, such as a collision.

