怠慢

1. Origins, structure, and basic meaning

• Structure: 怠慢, read たいまん, combines idleness 怠 with neglect 慢 to express dereliction of duty.
• Basic usage: It strongly criticizes failure to perform an assigned duty, as in 管理者の怠慢.

2. Common pitfalls and similar expressions

• Tone and register
  • It carries responsibility for neglecting necessary work rather than merely being slow and often appears in formal criticism.