1.
slow and fast; pace variation; modulation
the variation between slow and fast speeds or tempos; used in music, speech, and sports
緩急をつける。
To vary the pace.
Common collocation
演奏に緩急をつけることで表現が豊かになる。
Adding tempo variation to the performance makes the expression richer.
ピッチャーは緩急を使い分けてバッターを抑えた。
The pitcher kept the batter in check by mixing slow and fast pitches.
緩急自在にボールを操る。
To control the ball freely with varying speeds.
緩急自在 means having complete control over pace variation
2.
emergency; urgent situation
a critical or pressing situation requiring immediate action (used in the expression 緩急の際)
緩急の際には連絡してください。
Please contact us in case of emergency.
緩急を要する事態に備える。
To prepare for situations requiring urgent action.
緩急あれば助け合うのが仲間だ。
True friends help each other in times of need.
Composed of 緩 (slow, relaxed) + 急 (fast, urgent). The two senses come from different readings of this contrast: variation in speed (sense 1) versus the urgent end of the spectrum (sense 2).
COMMON EXPRESSIONS:
- 緩急をつける: to vary the pace
- 緩急自在: having complete control over pace variation
- 緩急の際: in case of emergency
- 緩急を使い分ける: to mix fast and slow skillfully
USAGE BY DOMAIN:
- Music: varying tempo for expressiveness
- Baseball: mixing fast and slow pitches
- Speech/writing: varying rhythm and pacing
Sense 1 (pace variation) is far more common in modern usage. Sense 2 (emergency) appears mainly in formal or literary expressions like 緩急の際 and 緩急あれば.