You may hear teinei in everyday Japanese, customer service, workplace communication, and descriptions of careful work. 丁寧 (teinei) can mean both respectful politeness and careful attention to detail, so understanding both sides helps you use the word more naturally.
Global Japanese Words
丁寧 (teinei)
丁寧 (teinei) is used when someone speaks politely, behaves respectfully, or does something with care, patience, and attention to detail.

丁寧 can describe speech or careful work
- Japanese
- 丁寧
- Romaji
- teinei
- Core meaning
- Polite, courteous, careful, thorough, or done with attention to detail.
- Quick nuance
- 丁寧 (teinei) has two important sides: respectful politeness in speech or behavior, and carefulness in the way something is done. It is not only about being “nice”; it often suggests sincere effort, care, and attention.
- Safe usage tip
- Use it for polite service, respectful speech, careful explanations, well-prepared work, or actions done with thoughtfulness and precision.
The two meanings carried by 丁寧
丁寧 (teinei) means polite, courteous, careful, or thorough. It can describe respectful speech and behavior, but it can also describe work or service done with care and attention to detail. For example, 丁寧な説明 means a careful or polite explanation, while 丁寧なサービス can mean polite and attentive service.
Politeness and carefulness share one word
When a Japanese person says something is teinei, they may be praising the care behind the action. It can describe a respectful way of speaking, a carefully wrapped gift, a patient explanation, or service that feels thoughtful and precise.
Hear 丁寧 applied to a person and a task
Japanese: ホテルのスタッフはとても丁寧なサービスを提供してくれました。
English: The hotel staff provided very polite and attentive service.
Do not translate every 丁寧 as “polite”
Many English speakers understand 丁寧 only as “polite.” That is correct in many situations, but the word also often means careful, thorough, or done with attention. This second meaning is especially important when describing work, service, explanations, writing, or craftsmanship.
Choose 丁寧 for manner or care
When 丁寧 describes respect or care
Use 丁寧 to describe polite speech, respectful service, careful explanations, neatly prepared work, or actions done with patience and attention to detail.
When another adjective is more precise
Do not use it just to mean “friendly” or “kind.” A person can be friendly but not 丁寧 if their speech, work, or behavior lacks care or respect.
Polite language is only one use of 丁寧
Next time you see 丁寧, ask whether it is describing respectful behavior, careful action, or both. That small distinction makes the word much easier to understand naturally.