Word
Kana: がんじょう Romaji: ganjou Level: N1

頑丈

Meaning in English

solid, firm, strong

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Word context

What it means

頑丈 means sturdy, robust, or durable; it describes something with strong construction or resilience, capable of withstanding stress or impact, and is commonly used for objects like tools, buildings, or machinery, as well as describing a physically strong person in certain contexts.

Main meanings

  • Sturdy physical durability: describes objects that resist damage and wear.
  • High structural integrity: used for architecture, equipment, and components designed to be solid.
  • Figurative robustness: can refer to a person’s constitution or unwavering resolve in some contexts.

How to use it

Used to describe tangible things with solid construction or resilience, typically appearing as 頑丈なX; common in formal and technical writing, product specifications, and everyday speech when emphasizing durability; less appropriate for abstract traits unless using a different term like 堅牢 or 強固; examples of usage include 頑丈な箱, 頑丈な車, 頑丈に作る.

Variants and close terms

  • 堅牢 (kenrō) — solid, secure
  • 丈夫 (jōbu) — sturdy
  • 頑強 (gankyō) — staunch, robust
  • 脆弱 (zeijaku) — fragile, weak

Composition

  • 頑: stubborn, firm; conveys unyielding resistance
  • 丈: height, length; conveys build or stature and reinforces solidity

Etymology

頑 (stubborn, firm) and 丈 (height, length) combine to form the compound; the reading ganjou reflects the Sino-Japanese on'yomi; the sense of solidity emerges from the semantic fields of the two characters.

Origin

Borrowed from Sino-Japanese sources; attested in classical Chinese as a compound and integrated into Japanese, becoming common in modern usage.

Word class

na-adjective (形容動詞)

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