厄介
やっかい · yakkai · JLPT N3 · na-adj
trouble
yakkai sounds like yucky: a yucky hassle you want to avoid
厄 means misfortune (as in 厄年, an unlucky year) and 介 means to stand between or intervene. Misfortune that gets in between you and your plans is trouble, a burden to deal with. Yakkai sounds like yucky.