watertight
adj. 不漏水的；无懈可击的
近义词：resistant，unassailable，sealed，waterproof，impermeable，rainproof，incontrovertible，sound，firm，irrefutable，indisputable，bulletproof，unshakable，
双解释义
adj.(形容词)
- 不漏水的，不透水的，水密的 through which no water can pass
- 严密的，无懈可击的 produced with great or unintended results
英英释义
Adjective
- not allowing water to pass in or out
- without flaws or loopholes;
"an ironclad contract" "a watertight alibi" "a bulletproof argument"
例句
用作形容词(adj.)
- This roof is completely watertight.这屋顶一点也不漏水。
- We had a couple of suspicious characters but their alibis are watertight.我们中有几位多疑的人，但是他们的阴谋无懈可击。
- The system, of course, is not watertight.当然这套系统也不是天衣无缝的。