煩雑【はんざつ】
complex, intricate, complicated, confused, troublesome, vexatious, cumbersome
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)
煩わしい【わずらわしい】
troublesome, annoying, complicated