強靭・強靱|きょうじんkyoujin[0]heiban (flat)

Common
Which spelling to use
強靭強靭 is the most common written form and the recommended choice for beginners; it is written entirely in kanji and is the form to use when writing.
強靱強靱 is a less common kanji-only written form of the same word. You may encounter it as a variant, but prefer 強靭 when choosing a form.
Definitions
  1. na-adjective, nountough; strong; tenacious
Conjugation
Plain form強靭(きょうじん)
Polite (desu)強靭です(きょうじんです)
Negative (dewa nai)強靭ではない(きょうじんではない)
polite (dewa arimasen)強靭ではありません(きょうじんではありません)
Past (datta)強靭だった(きょうじんだった)
Past negative (dewa nakatta)強靭ではなかった(きょうじんではなかった)
Te form (de)強靭で(きょうじんで)
Adverbial (ni)強靭に(きょうじんに)
Conditional (nara)強靭なら(きょうじんなら)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • SynonymタフCasualColloquial loanword for holding up under strain and being physically sturdy. 「強靭」 is more literary and stresses suppleness that will not snap.
  • Synonym頑丈がんじょうNeutralSturdy and durable; said mostly of objects and physiques, as in 「頑丈な箱」.
  • Synonym強いつよいNeutralMeans hard and unbending, and by extension stubborn; leans toward stiffness, unlike the flexible toughness of 「強靭」.
  • Synonym屈強くっきょうWrittenWritten word for a brawny, muscular build, as in 「屈強な男」; stresses physique.
  • Related硬いかたいNeutralThe most general word for hard; stresses hardness alone, without the resilience of 「強靭」.
  • Related強力きょうりょくNeutralMeans powerful, as in 「強力な薬」; stresses force or potency, and says nothing about resilience.
  • Related手ごわいてごわいCasualColloquial for an opponent too strong to handle, as in 「手ごわい相手」; stresses how hard it is to take someone on.
  • Related頑強がんきょうNeutralCovers unyielding persistence or a sturdy frame, as in 「頑強に抵抗」.
  • Related強壮きょうそうWrittenWritten word for physical strength and health, as in 「滋養強壮」; leans toward robust health.
  • Related力強いちからづよいNeutralBrimming with power and heartening, as in 「力強い声」.
  • RelatedこわいNeutralMeans hard and unbending, and by extension stubborn; leans toward stiffness, unlike the flexible toughness of 「強靭」.
  • Related手強いてづよいNeutralThe same word as above, also written 「手強い」; extends to thorny problems, stressing that something is hard to deal with.
  • Related精強せいきょうWrittenWritten word for troops that are elite and formidable, as in 「精強な部隊」.
  • Antonym脆弱ぜいじゃくNeutralAntonym for fragile, easily broken weakness, the direct opposite of the toughness of 「強靭」.
  • Antonym柔弱にゅうじゃくWrittenWritten antonym for weakness and lack of backbone, standing opposite to 「強靭」.

Choose 「強靭」 for supple, elastic toughness that will not break, or for an unyielding will, as in 「強靭な精神力」「強靭な肉体」. For plain sturdiness use 「頑丈」, for a brawny build 「屈強」; 「脆弱」 is the opposite, fragile.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. しなやかで強つよく粘ねばりがあること。
Kanji in this word
See also

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