What does 空しい mean?
空しい is a Japanese adjective meaning “vacant, futile, vain” in English. It can also be translated as “vain, lifeless” depending on context. It is written as 空しい in kanji, むなしい in hiragana, and munashii in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
彼は多くの日々をむなしく過ごさなければならなかった。
He had to spend many barren days.