Kanji 健 healthy, health, strength 虚 void, emptiness, unpreparedness Related words 健けん 闘とう 健闘 is a noun meaning 'good fight' or 'strenuous effort', while 健闘むなしく is an adverbial expression meaning 'despite a good fight'.
空むな しい 空しい is an adjective meaning 'empty' or 'futile'; 健闘むなしく uses its adverbial form to modify the outcome of the effort.
Written forms 健けん 闘とう むなしく
Standard spelling using kana for むなしく ; the most common written form.
健けん 闘とう 空むな しく
Kanji spelling for むなしく ; less common but still seen.
健けん 闘とう 虚むな しく
Alternate kanji for むなしく ; rare and may be considered non-standard.
Etymology Compound of 健闘 (けんとう , 'good fight') and the adverbial form of 空しい (むなしい , 'futile'). The phrase literally means 'with a good fight being in vain'.
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