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Definition of watertightness
watertightness
/ˈwɔːtərˌtaɪtnəs/
wa · ter · tight · ness
Adverb:watertightly
•Adjective:watertight
watertightness Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Rare
Syllables
4
watertightness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The quality or state of being so closely and firmly sealed or constructed that water cannot enter or escape.
Example
"Marine engineers conducted rigorous pressure tests to verify the watertightness of the submarine's hull before its maiden voyage."
2
The quality of an argument, contract, plan, or alibi of being completely sound, leaving no loopholes, flaws, or room for doubt.
Example
"The legal team reviewed every clause of the agreement to ensure its absolute watertightness against potential future disputes."
Synonyms
View all synonyms for watertightness Antonyms
View all antonyms for watertightness• Nearby Words
Cite this Entry
Wordmom. (2026). Definition of Watertightness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/watertightness