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Quadruple VS

Synonym Boundary: "真面目", "重大", "深刻", "謹厳"

All represent the core concept "serious", but require precise selection.

Japanese Option A

真面目

まじめ (majime)
N4 / CEFR
Japanese Option B

重大

じゅうだい (jūdai)
N3 / CEFR
Japanese Option C

深刻

しんこく (shinkoku)
N2 / CEFR
Japanese Option D

謹厳

きんげん (kingen)
N1 / CEFR

Quadruple VS Nuance Contrast & Social Differences

When expressing "serious" in Japanese, you must carefully distinguish between "真面目", "重大", "深刻", "謹厳" based on context.
  • 真面目 (まじめ (majime) - Level: N4): Maps to "serious, diligent, honest" and is used when な-形容詞.
  • 重大 (じゅうだい (jūdai) - Level: N3): Maps to "Serious, grave, important, significant" and is used when Emphasizes the importance, gravity, or severity of a matter. Often used for problems, decisions, news. Can be used with な as an adjective.
  • 深刻 (しんこく (shinkoku) - Level: N2): Maps to "serious, severe, grave, acute" and is used when Describes a situation, problem, or condition that is grave, critical, or of great concern. Often used as a な-adjective.
  • 謹厳 (きんげん (kingen) - Level: N1): Maps to "serious; solemn; grave; strict; austere" and is used when Describes a person's character, attitude, or appearance as being very serious, strict, and formal, often implying a lack of humor or lightheartedness. 真面目で厳格な態度や様子を指す。.
Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!
Context for "真面目"
彼はいつも真面目に仕事に取り組んでいる。
He always approaches his work diligently.
Context for "重大"
これは会社にとって重大な問題です。
This is a serious problem for the company.
Context for "深刻"
地球温暖化は人類にとって深刻な問題だ。
Global warming is a serious problem for humanity.
Context for "謹厳"
彼はいつも謹厳な態度で仕事に取り組んでいる。
He always approaches his work with a serious and strict attitude.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "彼はいつも ___ に仕事に取り組んでいる。" (Meaning: "He always approaches his work diligently.")
🎉 Correct Answer!

Remember: "真面目" is correct here because it represents "serious, diligent, honest" in the context: "He always approaches his work diligently.".

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