watertightness

/ˈwɔtərˌtaɪtnəs/
noun
  1. The quality of being completely sealed so that no water can enter or escape.
    • The old boat lost its watertightness after years of exposure to the sun.
    • Proper watertightness is essential for a basement to stay dry during heavy rain.
    • The engineers tested the watertightness of the submarine's hull before its first dive.
  2. The quality of an argument, plan, or system being perfectly logical and without flaws.
    • We need to check the watertightness of our security system before launching the new software.
    • The watertightness of the contract prevented any legal loopholes.
    • The lawyer questioned the watertightness of the alibi presented by the defendant.
Antonyms
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