誠心誠意（せいしんせいい）
JLPT N1 · noun
Pitch accent: nakadaka (middle-high) — pitch drops after mora 5
Meaning: wholeheartedly / sincerely
Example sentences
- 誠心誠意お客様に尽くす。 — Serve customers with wholehearted sincerity.
- 誠心誠意謝罪する。 — Apologize with utmost sincerity.
Related words
See it used in real works
- Example sentences from Japanese novels & web fiction (Massif)
- Hear “誠心誠意” pronounced in real videos (YouGlish)