たるんだ (translations)→ bag lumpy saggy
だらけた (translations)→ dull idle lazy
弱々しい (translations)→ feckless fragile gentle sickly thinly thready uncertainly weak
柔弱な (translations)→ emasculate enervated silken
薄弱な (translations)→ feeble
力のない (translations)→ limply unconvincingly
flaccidity