Describes physical toughness, resilience, or mental tenacity. Often used for materials, bodies, or willpower.
She overcame the hardship with a tough, resilient spirit.
This material is extremely tough and won't tear easily.
彼は強靭な精神力で困難を乗り越えた。
He overcame the difficulties with tenacious mental strength.
Athletes train every day to maintain a strong, resilient body.
He achieved his goal thanks to his unbreakable will.
This material possesses a surprising degree of toughness.
丈夫 is a common, everyday word for something being sturdy or healthy, while 強靭 is more formal and literary, often describing willpower or materials under stress.
強固 emphasizes firmness and unshakeability (e.g. of a stance or structure), whereas 強靭 highlights toughness combined with elasticity.
タフ is a casual loanword used for tough people or situations, while 強靭 is a more formal, often literary term for physical or mental toughness.
強靭 emphasizes elastic resilience and strength (e.g. of materials or a body), while 頑強 stresses solid, unbreakable toughness.
脆弱 describes something fragile and easily broken or weak, the direct opposite of the toughness and resilience expressed by 強靭.
強引 shares the kanji 強 but means forceful or pushy in manner, unlike 強靭 which describes physical or mental toughness and resilience.
Standard kanji spelling; 靭 is the modern form.
Variant using the older 靱 character; still seen but less common.
Search-only form with じん in kana; not a standard written form.
Compound of 強 (strong) and 靭 (pliable but tough). The combination conveys strength with flexibility.