苦悶[kumon] anguish
煩悶[hanmon] worry
悶える[modaeru] to be in agony
悶死[monshi] die in agony
悶着[monchaku] trouble

憂悶[yuumon] anguish
悶悶[monmon] worrying endlessly
遣悶[kenmon] driving away melancholy
身悶え[mimodae] writhing (in agony)
悶絶[monzetsu] fainting in agony

煩う[wazurau] to be ill
子煩悩[kobonnou] indulgent
煩さい[urusai] noisy
煩わしい[wazurawashii] troublesome
煩わす[wazurawasu] to trouble

煩雑[hanzatsu] complex
煩悩[bonnou] worldly desires
煩悶[hanmon] worry
恋煩い[koiwazurai] lovesickness
煩忙[hanbou] pressure of business