robust

1. Origins, structure, and basic meaning

• Structure: 壮 is associated with robustness or grandeur; its on-reading is そう.
• Basic usage: 壮大(そうだい) expresses grandeur or magnificence, while 壮観(そうかん) means a magnificent sight.

2. Common pitfalls and similar expressions

• The scale of a story and a visible spectacle
  • 壮大な物語 means a grand story. 壮大 describes a story's scale or a palace's magnificence.
  • Describing a flower field as 壮観だった means that it was a magnificent sight. 壮観 focuses on an impressive visible scene, such as a vast flower field or many model ships on display.