Nihoner

“Having a lot of trouble” in Japanese

Short answer
腐心 fushin ふしん

Having a lot of trouble in Japanese is “腐心” (fushin). Full meaning: taking great pains (to do), making every effort, having a lot of trouble (doing), racking one's brains.

Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.