ふんとうどりょく 奮闘努力 LinksSentence search for 奮闘努力Sentence search for ふんとうどりょくKanji details for 奮, 闘, 努 and 力Edit in JMdict Noun, Suru verb1. try one's best; all-out effort; strenuous effortsYojijukugo (four character compound) Discussions Log in to talk about this word.