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

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
This hermetic secrecy is how Allure beauty director Sarah Kinonen and I recently found ourselves in the bathroom of a suite in the Aman hotel on New York’s Fifth Avenue, brushing our teeth while members of the Dyson public relations team looked on.

— Jenny Bailly, Allure, 1 Sep. 2026

Definition of hermetic

Adjective

The real genius is the second lid, which turns the whole thing into a leakproof pitcher.

— Alaina Chou, Bon Appetit Magazine, 31 Aug. 2026
If using cold water for thawing, place chicken in leakproof packaging, submerge, and allow about 30 minutes for every pound.

— Sheena Chihak, Better Homes & Gardens, 20 Aug. 2026

Definition of leakproof

Adjective

The Ambler silhouette, which is inspired by Sorel’s signature Caribou boot, comes to life in the slip-on clog version as a streamlined waterproof mule that blends in Needles’ signature purple with premium leather.

— Stephen Garner, Footwear News, 14 Sep. 2026
The soft rubber leaves are waterproof for outdoor decorating, and the vines offer plenty of drape for a dramatic appearance.

— Better Homes & Gardens, Better Homes & Gardens, 10 Sep. 2026

Definition of waterproof

Browse Nearby Words

water taxis

watertight

waterway

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“Watertight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/watertight. Accessed 17 Sep. 2026.

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Synonyms of watertight

adjective

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