徹頭徹尾

1. Origins, structure, and basic meaning

• Structure: The four-character adverb 徹頭徹尾 (てっとうてつび) emphasizes consistency from beginning to end.
• Basic usage: It can modify an unwavering stance or describe a work told entirely from one character's viewpoint.

2. Common pitfalls and similar expressions

• Consistency from beginning to end
  • It emphasizes the same principle continuing without exception from start to finish, not thoroughness in only one part.