watertight
US
UK watertight adj: (completely water-resistant)
SC 不漏水的 bú lòu shuǐ de
SC 不透水的 bú lòu shuǐ de，bú tòu shuǐ de
SC 防水的 bú lòu shuǐ de，fáng shuǐ de
The diving mask has a rubber skirt around its edge to create a watertight seal with the diver's face.
watertight adj: figurative (case, alibi: cannot be disputed) (比喻)
SC 无懈可击的，无可争辩的，滴水不漏的 wú xiè kě jī de ，wú kě zhēng biàn de ，dī shuǐ bú lòu de
The suspect has a watertight alibi to explain where he was on the night of the crime.
cast-iron alibi, watertight alibi, bulletproof alibi n: figurative (strong defence)
SC 无懈可击的不在场证明
SC 强有力的不在场证明