Find Synonyms

watertightness Synonyms

Another word for watertightness

Choosing another word for watertightness depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

The quality or state of being so closely and firmly sealed or constructed that water cannot enter or escape.

Usage Example

"Marine engineers conducted rigorous pressure tests to verify the impermeability of the submarine's hull before its maiden voyage."

Strongest
impermeability
waterproofness
Strong
imperviousness

• noun (Context 2)

The quality of an argument, contract, plan, or alibi of being completely sound, leaving no loopholes, flaws, or room for doubt.

Usage Example

"The legal team reviewed every clause of the agreement to ensure its absolute airtightness against potential future disputes."

Strongest
airtightness
Strong
soundness
ironcladness
infallibility

Opposites of watertightness

The opposite of watertightness shifts depending on context. Common opposites include:

leakiness
permeability
porosity
fallibility
vulnerability
weakness
See all opposites of watertightness

• Nearby Words

waterspout
waterthrush
watertight
watertightness
waterway
waterwheel
waterworks

Cite this Entry

Wordmom. (2026). Synonyms for Watertightness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/watertightness
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