忙しい

1. Origins, structure, and basic meaning

• Structure: 忙しい is read as いそがしい and is an い-adjective meaning busy, with many things to do and little time or freedom.
• Basic usage: Being busy with work appears in 仕事が忙しい, while connecting the reason to a result appears in 忙しくて読めない.

2. Common pitfalls and similar expressions

• い-adjective conjugation
  • When it connects to a following clause, 忙しい changes to 忙しくて; the form is not 忙しいで.
• Difference from 急ぐ
  • 忙しい describes the state of having much to do, while 急ぐ describes the action of hurrying to meet a time or need.