激しい

1. Origins, structure, and basic meaning

• Structure: 激しい is read as はげしい and is an adjective for movement, competition, emotion, or weather that is intense, violent, or severe.
• Basic usage: Use 激しい試合 for an intense match and 雨が激しくなる for rain becoming heavier, showing adjectival and adverbial use.

2. Common pitfalls and similar expressions

• Difference between 激しい and 厳しい
  • The former describes great intensity in an action or phenomenon, whereas the latter often describes strict standards, harsh conditions, or severity in judgment.