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Quadruple VS

Synonym Boundary: "深刻な", "重大", "まじめな", "深刻"

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

Japanese Option A

深刻な

しんこくな (shinkokuna)
N3 / CEFR
Japanese Option B

重大

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

まじめな

まじめな (majime na)
N3 / CEFR
Japanese Option D

深刻

しんこく (shinkoku)
N2 / CEFR

Quadruple VS Nuance Contrast & Social Differences

When expressing "serious" in Japanese, you must carefully distinguish between "深刻な", "重大", "まじめな", "深刻" based on context.
  • 深刻な (しんこくな (shinkokuna) - Level: N3): Maps to "serious, severe, grave" and is used when Describes a problem, situation, or condition that is grave, severe, or has serious implications, requiring serious attention..
  • 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.
  • まじめな (まじめな (majime na) - Level: N3): Maps to "serious, diligent, earnest, honest" and is used when A な-adjective. Describes someone's character or attitude as sincere, earnest, or hardworking. Generally used positively to commend a person's responsible nature..
  • 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.
Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!
Context for "深刻な"
地球温暖化は深刻な問題だ。
Global warming is a serious problem.
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 "まじめな"
彼はいつもまじめに仕事に取り組んでいる。
He always approaches his work diligently.
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.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "地球温暖化は ___ 問題だ。" (Meaning: "Global warming is a serious problem.")
🎉 Correct Answer!

Remember: "深刻な" is correct here because it represents "serious, severe, grave" in the context: "Global warming is a serious problem.".

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