What does 惜しまない mean?
惜しまない is a Japanese noun meaning “without sparing” in English. It is written as 惜しまない in kanji, おしまない in hiragana, and oshimanai in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
惜しい！あともうちょっとだったのに！
That was close. We almost got it.