frailer

例句:

• The children loved them but the frailer-toothed adults got temporary lockjaw.
  来自THETIMES
• Somehow he looked older and frailer in his city clothes.
  不知怎么回事,他穿着城市服装,显得衰老一点.
  
• Most of the deep sea is subject to the even frailer rule of international law.
  来自ECONOMIST
• Also likely to be remarked on is that Steve looks thinner, and if possible, frailer, than ever.
  来自FORBES