🦅 Project Eagle
Quintuple VS

Synonym Boundary: "明確な", "はっきりした", "快晴", "歴然", "明白"

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

Japanese Option A

明確な

めいかくな (meikaku na)
N3 / CEFR
Japanese Option B

はっきりした

はっきりした (hakkirishita)
N3 / CEFR
Japanese Option C

快晴

かいせい (kaisei)
N3 / CEFR
Japanese Option D

歴然

れきぜん (rekizen)
N2 / CEFR
Japanese Option E

明白

めいはく (meihaku)
N2 / CEFR

Quintuple VS Nuance Contrast & Social Differences

When expressing "clear" in Japanese, you must carefully distinguish between "明確な", "はっきりした", "快晴", "歴然", "明白" based on context.
  • 明確な (めいかくな (meikaku na) - Level: N3): Maps to "clear, precise, definite" and is used when 形容動詞.
  • はっきりした (はっきりした (hakkirishita) - Level: N3): Maps to "clear, distinct, definite" and is used when Often used to describe something that is easy to understand, well-defined, or stated clearly. Can also be used for feelings or thoughts..
  • 快晴 (かいせい (kaisei) - Level: N3): Maps to "clear weather, fine weather" and is used when Describes a day with clear skies, no clouds, and good visibility, typically implying pleasant weather conditions..
  • 歴然 (れきぜん (rekizen) - Level: N2): Maps to "clear, obvious, plain (e.g., difference, fact)" and is used when 物事の状態や事実が非常に明白で、誰の目にもはっきりしているさまを表す。疑いの余地がないほど明らか。.
  • 明白 (めいはく (meihaku) - Level: N2): Maps to "clear, obvious, plain, evident" and is used when 物事や事実がはっきりと明らかで、疑う余地がないこと。誰が見ても疑う余地がないほど明らか。.
Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!
Context for "明確な"
彼の指示はいつも明確なので、迷うことがない。
His instructions are always clear, so I never get confused.
Context for "はっきりした"
彼の説明はとてもはっきりしていたので、よく理解できました。
His explanation was very clear, so I understood it well.
Context for "快晴"
今日は快晴で、気持ちがいい。
It's clear weather today, and it feels good.
Context for "歴然"
両者の実力差は歴然としていた。
The difference in skill between the two was obvious.
Context for "明白"
彼の無罪は明白だった。
His innocence was evident.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "彼の指示はいつも ___ ので、迷うことがない。" (Meaning: "His instructions are always clear, so I never get confused.")
🎉 Correct Answer!

Remember: "明確な" is correct here because it represents "clear, precise, definite" in the context: "His instructions are always clear, so I never get confused.".

💡 Practice with AI! Live

Don't just read. Practice speaking this grammar with our interactive AI coach for free!

Try AI Speaking 👉