冗長

1. Origins, structure, and basic meaning

• Structure: 冗長 is read as じょうちょう and is a na-adjective describing an explanation or text as unnecessarily long and wordy because of repetition or excess content.
• Basic usage: Predicating it of an explanation appears in 説明が冗長だ, while modifying a text appears in 冗長な文章.

2. Common pitfalls and similar expressions

• Negative judgment about length
  • It means more than simply long: repetition or irrelevant detail makes the material longer than necessary and in need of shortening.
• Difference from 詳細
  • 詳細 can neutrally or positively mean that necessary information is given in detail, while 冗長 negatively judges the material as needlessly long.