✨ Basic Meaning
🎯 Primary Function
📋 Grammar Structure
🎭 Usage Contexts
Less frequent in highly formal or polite contexts, but can be used if the situation allows for directness. Tone should be considered carefully.
Very common in everyday, casual conversations among friends, family, or close colleagues.
Common in informal written communication such as personal emails, casual blog posts, or text messages. Less common in formal documents or academic writing.
Highly frequent and natural in spoken Japanese, used to convey the nuance of something having happened well in the past.
💡 Common Applications
📌 Important Points
⚠️ Common Mistakes
🏛️ Cultural Context
🔍 Subtle Differences
📝 Conjugation Notes
「とっくに」 functions as an adverb, so it does not conjugate itself. It modifies verbs, adjectives, or states that follow it. The verb or adjective it modifies will be in the appropriate tense (usually past or ている form).
🔊 Pronunciation Tips
「とっくに」 is pronounced “tokkuni.” Pay attention to the small 「っ」 (sokuon), which indicates a glottal stop or a brief pause before the 「く」 sound. This creates a distinct, clipped pronunciation, similar to a double consonant in English (e.g., “bookcase” where the “kk” is held briefly).
🧠 Memory Tips
Think of 「とっくに」 as “Took-kuni” – as in, “It TOOK care of itself, so it’s KUNIkely you need to worry anymore, because it happened a LONG time ago!” (A slightly humorous mnemonic to link “took” with past completion and “kuni” with the sound, and the general feeling of being finished.)

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.