✨ Basic Meaning
🎯 Primary Function
📋 Grammar Structure
🎭 Usage Contexts
Can be used in formal settings, often sounding slightly more formal than -ないで.
Used, but less common in very casual conversation compared to -ないで.
Frequently appears in written Japanese, such as essays, articles, or formal documents.
Used in spoken Japanese, particularly in more structured speech or when a slightly more formal nuance is desired.
💡 Common Applications
📌 Important Points
⚠️ Common Mistakes
🏛️ Cultural Context
🔍 Subtle Differences
📝 Conjugation Notes
Verb (Nai-form, remove ない) + ずに. Exception: する becomes せずに.
🔊 Pronunciation Tips
Pronounced “zu ni”. The ‘u’ sound after ‘z’ can sometimes be devoiced, sounding closer to “z-ni”.
🧠 Memory Tips
Remember it as a slightly more formal alternative to -ないで for expressing “without doing.” Focus on the irregular form せずに.

I’m a software engineer based in Japan, with experience in developing web and mobile applications. I’m passionate about technology, especially in DevOps, AI, and app development using platforms like AWS, Flutter, and Node.js. My goal is to build a website that shares knowledge about the Japanese language and IT, helping everyone learn and grow more easily in the digital era.