arrogance

1. Origins, structure, and basic meaning

• Structure: 慢 has 14 strokes and the on-reading まん. 自慢 (じまん) and 慢性 (まんせい) have different meanings as complete words.
• Basic usage: 自慢 describes boasting or something to be proud of; 慢性 describes a condition that persists over time.

2. Common pitfalls and similar expressions

• Pride and a persistent condition
  • 家族みんなの自慢だ means that a grandmother's cooking is the pride of the whole family. 自転車を友達に自慢した means showed off a bicycle to friends.
  • 慢性の痛み means persistent, chronic pain. 慢性化しないよう expresses the aim of daily walking in the example: preventing a lack of exercise from becoming chronic.