力強い|ちからづよいchikarazuyoi[5]nakadaka (mid-high)

1. i-adjectivepowerful; strong; forceful; vigorous
   踊り子おどりこ達たちは白しろいドレスを着きてきゃしゃに見みえますが、実際じっさいには彼女かのじょたちは馬うまのように力強ちからづよいのです。↗

   The dancers look delicate in their white dresses, but they are really as strong as horses.
2. i-adjectivereassuring; encouraging

• Synonym強いつよいNeutralThe everyday word for strong, as in 「力が強い」; 「力強い」 adds the nuance of seeming powerful and reassuring.
• Synonym強力きょうりょくNeutralRefers to sheer strength or potency, as in 「強力な薬」; about effectiveness, with none of the reassuring nuance.
• SynonymパワフルNeutralA loanword for energetic and full of drive, as in 「パワフルな人」; common in speech.
• SynonymたくましいNeutralDescribes sturdiness and resilience, as in 「たくましい体」 or 「たくましく生きる」; leans toward vitality.
• Related屈強くっきょうWrittenWritten style for physically strong and sturdy, as in 「屈強な男」; focuses on physique.
• Related有力ゆうりょくNeutralMeans influential or promising, as in 「有力な候補」; about standing or good prospects, not vigor.
• Related手ごわいてごわいNeutralDescribes an opponent too strong to handle, as in 「手ごわい相手」; strength seen from the opponent's side.
• Related精強せいきょうWrittenA written word for elite, superior strength, mostly of military units; rare in modern usage.
• Related手強いてづよいNeutralThe same word as the entry above; 「手強い」 is simply an alternate spelling. Also used of thorny problems.
• Antonym弱々しいよわよわしいNeutralMeans weak and feeble; the direct opposite of 「力強い」.
• Antonym頼りないたよりないNeutralMeans unreliable; the opposite of the reassuring side of 「力強い」.

Use 「力強い」 for forceful actions or sounds and for things that reassure, as in 「力強い言葉」. Plain strength is 「強い」, sturdy vigor 「たくましい」, a tough opponent 「手ごわい」; the opposite is 「弱々しい」.

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

1. いかにも力ちからがありそうなさま。
2. 頼たのもしい、心強こころづよい。