WATERTIGHT Synonyms: 23 Similar and Opposite Words

watertight

adjective

Definition of watertight

as in airtight

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of watertight The shells, which are watertight and surprisingly sturdy, usually can be completed for a project in 24 hours. — Sam Lubell, Los Angeles Times, 9 May 2025 Subjected to an almost watertight international arms embargo, Iran was forced to rely mostly on self-sufficiency, religious zeal, and patriotism. — Foreign Affairs, 25 Feb. 2025 Des Cars wrote that parts of the museum are no longer watertight, posing a risk to the art’s safety. — Madeline Fitzgerald, Quartz, 28 Jan. 2025 The Woods Hole underwater acoustic system includes off-the-shelf components in a watertight Pelican case. — IEEE Spectrum, 20 Nov. 2024 See All Example Sentences for watertight

Recent Examples of Synonyms for watertight

Adjective

Raye and the platoon of ace musicians joining her are as vocally and musically airtight as possible.

— Melissa Ruggieri, USA Today, 27 Apr. 2026
The 1984 Olympics had a relatively airtight contract that protected taxpayers, but that’s not the case this time.

— Susan Shelley, Daily News, 18 Feb. 2026

Definition of airtight

Adjective

Impossible than to the hermetic paranoia of Gary Oldman in Tinker Tailor Soldier Spy.

— Scott Tobias, Vulture, 21 Oct. 2026
O’Neill, a physics professor at Princeton, argued for the practical possibility of building human habitats that would float between Earth and the moon, housing tens of thousands of people in hermetic environments with earthlike gravity and climate.

— Jacob Weisberg, Vanity Fair, 10 Sep. 2026

Definition of hermetic

Adjective

If your car regularly collects wrappers and receipts, keep a small, leakproof trash container or lined bin in an easy-to-reach spot.

— Jessica Safavimehr, Southern Living, 2 Nov. 2026
Cadence capsules are magnetic, stackable, and leakproof cases to hold liquids most conveniently.

— Nneya Richards, Travel + Leisure, 11 Oct. 2026

Definition of leakproof

Adjective

The brand has always had a strong DNA for cold weather winter boots with the waterproof element.

— Vicki M. Young, Footwear News, 9 Nov. 2026
Tile drenching extends tiles onto walls, floors, and ceilings, creating a dramatic, high-end, waterproof look.

— Maria Sabella, Better Homes & Gardens, 9 Nov. 2026

Definition of waterproof

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water taxis

watertight

waterway

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Style

“Watertight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/watertight. Accessed 12 Nov. 2026.

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Synonyms of watertight

adjective

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