1. 形容詞
   最合理的, 最沒有邏輯錯誤的
   最深沉而不間斷的, 最不受打擾的
   最沒有道德缺點的, 最正直的
   最健康的, 最健全的
   最徹底的, 最完全的
   最完好的
   最值得信任的, 最值得信賴的
   最保守的
   基礎最牢固的
   最有識別力的
   

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   同義字詞
   analytic,analytical,coherent,consequent,good,logical,rational,reasonable,sensible,valid,well-founded,well-grounded
   able-bodied,bouncing,fit,hale,healthy,hearty,robust,well,well-conditioned,whole,wholesome
   bombproof,fast,firm,stable,strong,sturdy
   

例句

1. It's the soundest of the lot, got good legs.
2. The rest of the passage is the soundest criticism.
3. Willats, however, uses the soundest possible arguments.
4. To give your investments time is the soundest approach.
5. The soundest justification for any method is that it works.
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