筋きん無む力りょく症しょうMeaningsNoun1. myastheniaKanji used筋muscle無nothing力power症medical conditionPitch accentきんむりょくしょうきんむりょくしょうComposed of筋きんmuscleNoun無む力りょくpowerlessness; helplessness; incompetence; ineffectivenessNoun症しょうillness; condition; -pathySuffix