- 悩む【なやむ】 - to be worried, to be troubled 
- 悩み【なやみ】 - trouble, troubles, worry, distress, sorrows, anguish, agony, problem 
- 苦悩【くのう】 - (mental) agony, anguish, suffering, distress 
- 悩ます【なやます】 - to afflict, to torment, to harass, to molest 
- 煩悩【ぼんのう】 - worldly desires, evil passions, appetites of the flesh, klesha (polluting thoughts such as greed, hatred and delusion, which result in suffering) 
- 伸び悩む【のびなやむ】 - to be sluggish, to make little progress, to show little growth, to fail to improve, to level off, to not grow as much as expected 
- 悩ましい【なやましい】 - seductive, carnal, enchanting, troubling, difficult, thorny, hard, anxious, uneasy 
- 思い悩む【おもいなやむ】 - to worry about, to be worried about, to fret about, to not know what to do, to be at a loss (as to what to do)