distant · leisurely

1. Origins, structure, and basic meaning

• Structure: 悠 has 11 strokes and the on-reading ゆう, used in 悠々 (ゆうゆう) and 悠久 (ゆうきゅう).
• Basic usage: 悠々 describes an unhurried, relaxed manner; 悠久 expresses an immense span of time or eternity.

2. Common pitfalls and similar expressions

• An unhurried manner and an immense span of time
  • 湖面を悠々と進んでいく describes a swan gliding leisurely across a lake. 締め切り前日でも悠々としていた means that someone remained relaxed even the day before the deadline.
  • 悠久の時を経て refers to the passage of an immense span of time. 川の流れに悠久を感じた means that someone felt a sense of eternity in the river's flow.