よわyowaまるmaru
1.

To experience a reduction in strength or intensity, often used to describe physical conditions or emotional states that are becoming less vigorous or powerful.

2.

To gradually lose effectiveness or force, reflecting a diminishing state in various contexts such as health, spirit, or environmental factors.

3.

To undergo a state of decline, indicating a transition from a stronger to a weaker condition, commonly associated with health, emotions, or external circumstances.

4.

To become less confident or assertive, illustrating a shift towards a more passive or uncertain demeanor in interpersonal or situational contexts.

Example:

あらしの勢いが弱まった。