Meaning and Usage
"完全" (かんぜん) means "complete" or "perfect" and is used to describe something that is whole, flawless, or without any deficiency. It often emphasizes totality or thoroughness.
Common Contexts
You will see "完全" used in everyday conversation to express that something is done fully or perfectly, such as plans, machines, skills, or conditions.
Collocations and Patterns
- 完全に (かんぜんに): adverbial form meaning "completely" or "perfectly". Used to modify verbs or adjectives.
- 完全な (かんぜんな): adjective form meaning "complete" or "perfect". Used before nouns.
- 完全無欠 (かんぜんむけつ): a set phrase meaning "perfect and flawless".
Register and Nuance
"完全" is neutral and can be used in both formal and informal contexts. It conveys a strong sense of completeness or perfection, so it is often used when emphasizing that nothing is lacking.
Common Mistakes
Learners sometimes confuse "完全" with "全部" (ぜんぶ), which means "all" or "everything". "完全" focuses on the quality of being perfect or complete, not just quantity. For example, "完全に理解する" means "to understand perfectly," not just "to understand all parts."