watertight
UK/'wɒtәtait/US
C2
Definitions
adj.
So tightly sealed that no water can get in
不透水的，密封防水的
adj.
(of an argument, plan, or alibi) impossible to find fault with or disprove
（论点、计划、不在场证明）无懈可击的，滴水不漏的
Root Breakdown
Native Englishwater + tight = sealed tightly enough that not a single drop of water can leak in, like a ship's hull. From that image of zero leaks comes the figurative sense: a watertight argument or alibi has no gap anyone can exploit — impossible to refute.
Root water still carries 16 more wordsCommon Collocations
- 1.watertight seal密封防水
- 2.watertight alibi无懈可击的不在场证明
- 3.watertight argument滴水不漏的论点
- 4.watertight case铁证如山的案子
Example Sentences
- 1.
Make sure the container is watertight before you store it underwater.
- 2.
The lawyer presented a watertight alibi that no one could challenge.
- 3.
Their business plan looked watertight on paper.