Synonym Nuance VS
How to say "Assumption" in Japanese
Both words can translate to "assumption", but which should you choose?
Japanese Option A
仮定
かてい (katei)
N3 / CEFR Syllabus
VS
Japanese Option B
債務引受
さいむひきうけ (saimuhikiuke)
C2 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "assumption" into Japanese, you must choose carefully between 仮定 and 債務引受.
In Japanese, 仮定 (かてい (katei)) is typically associated with "assumption, hypothesis, supposition" (Syllabus Level: N3) and represents Often used in formal contexts or when discussing logical reasoning and hypothetical situations. It can be a noun.
On the other hand, 債務引受 (さいむひきうけ (saimuhikiuke)) maps to "assumption of obligation" (Syllabus Level: C2) and represents Essential structural term in CEFR C2 vocabulary syllabus.. A literal translation of "assumption" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "仮定"
もし彼が来ないと仮定したら、どうしますか。
If we assume he doesn't come, what will we do?
Bilingual Context for "債務引受"
私は債務引受に興味があります。
I am interested in assumption of obligation.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "もし彼が来ないと ＿＿＿ したら、どうしますか。" (Meaning: "If we assume he doesn't come, what will we do?")
🎉 Correct Answer!
Remember: "仮定" fits here because it means "assumption, hypothesis, supposition" in the context of: "If we assume he doesn't come, what will we do?". "債務引受" represents "assumption of obligation".