細長い

1. Origins, structure, and basic meaning

• Structure: 細長い is read as ほそながい and is an i-adjective describing something both slender or narrow and long.
• Basic usage: A long narrow flower bed appears in 細長い花壇, while stretching north to south appears in 南北に細長く延びる.

2. Common pitfalls and similar expressions

• Noun modification and adverbial form
  • Use the い form before a noun and the く form to modify an action.
• Difference from 長い
  • 細長い conveys slenderness or narrowness in addition to length.