くや悔kuyaしいshiiくちお口惜kuchioしいshiiくや口惜kuyaしいshii
1.
A feeling of lingering dissatisfaction due to a perceived failure or loss, accompanied by a strong desire to overcome that situation or prove oneself in the future.
2.
An emotional state characterized by an inability to let go of past mistakes or humiliations, leading to a deep sense of frustration or resentment.
3.
The sentiment of regretting one’s actions or decisions, often reflecting on how things could have turned out differently.
4.
The inner turmoil experienced when faced with defeat or setback, fueling a motivation to strive for redemption or retribution against the source of that disappointment.
Example:
監督はチームをトーナメント優勝に今一歩という所までもっていったのに悔しいことだった。