ふくつふとう 不屈不撓 LinksSentence search for 不屈不撓Sentence search for ふくつふとうKanji details for 不, 屈 and 撓Edit in JMdict Noun1. indefatigability; indomitableness; with unremitting tenacityYojijukugo (four character compound) Discussions Log in to talk about this word.