This is the 8423rd most frequent Japanese word.
惜しい
"惜しい" means "regrettable," "惜気のある" conveys "close but not quite," or "deserving better luck."
惜しい is used to express that something was regrettable or close to success but ended in failure.
その試合は惜しい結果だった。
That match resulted in a disappointing outcome.
惜しい refers to something significant or crucial that was narrowly missed or unfortunately failed at.
惜しいところでミスをしてしまった。
I made a mistake at a critical point.
惜しい conveys a sense of loss or regret about something that was almost attained but ultimately missed.