WATERTIGHT Synonyms: 23 Similar and Opposite Words

watertight

adjective

Definition of watertight

as in airtight

Related Words

Relevance

Dissimilar Words

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

The opening moments of this penultimate episode evoke enough genuine idealism and hope to feel like a rare breath of fresh air, holding the hermetic nastiness of the series in sharp relief.

— Scott Tobias, Vulture, 17 May 2026
The idea was first proposed by Cicero and lived on through the hermetic tradition.

— Literary Hub, Literary Hub, 13 May 2026

Definition of hermetic

Adjective

It’s made with food-grade stainless steel that is both BPA and phthalate free, and also features a leakproof lid that easily glides back and forth to open or close.

— Stephanie Osmanski, Better Homes & Gardens, 17 July 2026
Each container comes with a leakproof, airtight, and BPA-free plastic lid that is safe for use in the microwave, dishwasher, and freezer, so each one is easy to use and clean.

— Alicia Geigel, Southern Living, 14 July 2026

Definition of leakproof

Browse Nearby Words

water taxis

watertight

waterway

See all Nearby Words

Cite this Entry

Style

“Watertight.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/watertight. Accessed 6 Aug. 2026.

Copy Citation

Synonyms of watertight

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on watertight

More from Merriam-Webster

Word of the Day

torpor

Popular in Grammar & Usage

7 Pairs of Commonly Confused Words

Merriam-Webster’s Great Big List of Words You Love to Hate

Is it 'nerve-racking' or 'nerve-wracking'?

'Sneaked' or 'Snuck': Which is correct?

Why does English have so many silent letters?

Popular in Wordplay

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Aug. 7

How long is a jiffy?

Popular

7 Pairs of Commonly Confused Words

The Longest Long Words List

It's a Scorcher! Words for the Summer Heat

Games & Quizzes