Synonym Nuance VS
How to say "Complete" in Japanese
Both words can translate to "complete", but which should you choose?
Japanese Option A
一変
いっぺん (ippen)
N2 / CEFR Syllabus
VS
Japanese Option B
完遂
かんすい (kansui)
N2 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "complete" into Japanese, you must choose carefully between 一変 and 完遂.
In Japanese, 一変 (いっぺん (ippen)) is typically associated with "complete change, sudden change, drastic change" (Syllabus Level: N2) and represents Used when a situation, appearance, or mood changes completely and often suddenly. It can be used for both positive and negative changes. （状況、様子、雰囲気などが完全に、そしてしばしば急に変わることを表します。プラスにもマイナスにも使われます。）.
On the other hand, 完遂 (かんすい (kansui)) maps to "complete, accomplish, fulfill (a task)" (Syllabus Level: N2) and represents Emphasizes successfully finishing a difficult or important task, duty, or mission to the very end, often implying overcoming challenges. Commonly used in business or formal settings.. A literal translation of "complete" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "一変"
彼の一言で、会議の雰囲気は一変した。
With just one word from him, the atmosphere of the meeting completely changed.
Bilingual Context for "完遂"
彼はどんな困難な任務でも完遂する。
He completes any difficult mission.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "彼の一言で、会議の雰囲気は ＿＿＿ した。" (Meaning: "With just one word from him, the atmosphere of the meeting completely changed.")
🎉 Correct Answer!
Remember: "一変" fits here because it means "complete change, sudden change, drastic change" in the context of: "With just one word from him, the atmosphere of the meeting completely changed.". "完遂" represents "complete, accomplish, fulfill (a task)".