1. 脆弱的
2. 稀薄的
3. 贫乏的
4. 纤细的
5. 薄的
6. 无力的
7. 平淡的
8. 空洞无力的
9. 细的
10. 精细的
11. 微细的
12. 微弱的
13. 缥缈的
14. 易断的
15. 烦琐的
16. 软弱无力的
17. 证据不足的
18. 空洞无物的
19. 无关紧要的
20. 细微的

1. having thin consistency;

   "a tenuous fluid"
   

2. very thin in gauge or diameter;

   "a tenuous thread"
   

3. lacking substance or significance;

   "slight evidence"
   "a tenuous argument"
   "a thin plot"
   

1.(联系)脆弱的;(理由)站不住脚的，牵强的;(地位)不稳固的
If you describe something such as a connection, a reason, or someone's position astenuous, you mean that it is very uncertain or weak.

e.g. The cultural and historical links between the many provinces were seen to be verytenuous...
许多省份之间的文化和历史纽带被认为是很脆弱的。
e.g. This decision puts the President in a somewhattenuous position.
这个决定使得总统的位置有些岌岌可危。

1. 纤弱的：肺动脉下VSD型DOLV是第二常见的类型(圆锥隔缺损型,the conal septal defect type),圆锥隔发育极度不良(tends to be very dificient),可能存在纤弱的(tenuous)肺动脉-二尖瓣纤维连续,并且肺动脉以不同程度跨越在室间隔上.

2. 稀薄的：penury 贫困, 贫穷 |tenuous 稀薄的 | ecstasy 入迷

3. 纤细的：tenuity 薄 |tenuous 纤细的 | tenure 保有条件

1. Our existence is far more tenuous than we might think.
   但我们的生命远比想像的要脆弱。
2. Cassini had passed through a tenuous cloud.
   卡西尼号还曾经穿越过稀薄的云层。
3. The air ten miles above the earth is very tenuous.
   地面往上十英里处的气体是非常稀薄的。
4. He gave a tenuous account of his past life.
   他对他过去的生活说得很含糊。
5. The tenuous state of the chromosomes during the period between cell divisions should not suggest that they are inert at this time.
   在细胞分裂期间，纤细状态的染色体并不表明此时它们是不活跃的。
6. The cross-dating links were often tenuous.
   跨年代的联系往往是空洞无力的。

• The image of the sun faintly reflected back from..tenuous gas in space.

  出自：Observer