腐心

1. Origins, structure, and basic meaning

• Structure: 腐心(ふしん) means devoting careful thought and effort to accomplishing something.
• Basic usage: It describes striving to maintain quality within a limited budget.
  • 担当者は限られた予算で質を保つことに腐心した。

2. Common pitfalls and similar expressions

• Worry and painstaking effort
  • 心配(しんぱい) can describe anxiety about an unfavorable outcome. 腐心 more strongly suggests working carefully on a solution, as in 構成に腐心する.