🦅 Project Eagle
Quintuple VS

Synonym Boundary: "古い", "ふるい", "因襲", "古式", "断爛朝報"

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

Japanese Option A

古い

ふるい (furui)
N5 / CEFR
Japanese Option B

ふるい

ふるい (furui)
N5 / CEFR
Japanese Option C

因襲

いんしゅう (inshū)
N1 / CEFR
Japanese Option D

古式

こしき (koshiki)
N1 / CEFR
Japanese Option E

断爛朝報

だんらんちょうほう (danranchouhou)
C2 / CEFR

Quintuple VS Nuance Contrast & Social Differences

When expressing "old" in Japanese, you must carefully distinguish between "古い", "ふるい", "因襲", "古式", "断爛朝報" based on context.
  • 古い (ふるい (furui) - Level: N5): Maps to "old (not for people), aged" and is used when An い-adjective used for things that are old or worn out. It is NOT used for people.
  • ふるい (ふるい (furui) - Level: N5): Maps to "old (not for people)" and is used when An い-adjective. Used for objects, buildings, or things that have existed for a long time. Not used for the age of people. Opposite of 新しい.
  • 因襲 (いんしゅう (inshū) - Level: N1): Maps to "old custom, old tradition, conventionalism, ingrained custom" and is used when 昔からの習慣やしきたりで、特に時代遅れであったり、改めるべきだと考えられるものに対して使われることが多い。ネガティブなニュアンスを含む。.
  • 古式 (こしき (koshiki) - Level: N1): Maps to "old style; ancient custom" and is used when Refers to methods, styles, or customs that have been passed down from ancient times, often implying tradition or formality. Commonly used with 「古式ゆかしい」.
  • 断爛朝報 (だんらんちょうほう (danranchouhou) - Level: C2): Maps to "Old, useless documents" and is used when Essential structural term in CEFR C2 vocabulary syllabus..
Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!
Context for "古い"
この本は古いですが、とても面白いです。
This book is old, but very interesting.
Context for "ふるい"
このカメラはとてもふるいです。
This camera is very old.
Context for "因襲"
その村ではいまだに因襲にとらわれた風習が残っている。
Old-fashioned customs still remain in that village.
Context for "古式"
その祭りでは、古式にのっとった儀式が行われる。
In that festival, rituals based on ancient customs are performed.
Context for "断爛朝報"
私は断爛朝報に興味があります。
I am interested in Old, useless documents.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "この本は ___ ですが、とても面白いです。" (Meaning: "This book is old, but very interesting.")
🎉 Correct Answer!

Remember: "古い" is correct here because it represents "old (not for people), aged" in the context: "This book is old, but very interesting.".

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