むねん無念munen
1.

A state of mind characterized by the absence of distracting thoughts, allowing for focused clarity and tranquility, often associated with a meditative mindset in Buddhist contexts.

2.

The feeling of deep regret and sorrow arising from the realization of missed opportunities or unfulfilled desires, reflecting a sense of loss that cannot be rectified.

3.

A sense of frustration or disappointment stemming from an inability to take action or make changes in response to overwhelming circumstances or one's own shortcomings.

むねんむそう無念無想munenmusou
1.

A mental state where the mind is clear and free from distracting thoughts, often associated with a meditative or spiritually pure condition.

2.

The absence of any contemplation or mental engagement, characterized by a state of thoughtlessness or indifference to concerns.

ざんねんむねん残念無念zannenmunen
1.

A feeling of profound sadness and regret over an outcome that is unfavorable or disappointing, often accompanied by a sense of frustration for the situation that was out of one's control.

2.

An emotional state of bitter disappointment stemming from unmet expectations, where one grapples with a sense of loss or missed opportunities that elicits feelings of chagrin.

3.

A compounded sense of vexation and disappointment that arises when aspirations or hopes are dashed, leading to a realistic understanding of the harshness of reality.