LEAKPROOF Synonyms: 14 Similar and Opposite Words

leakproof

adjective

Definition of leakproof

as in waterproof

unable to be penetrated by water because of construction or treated material the campers stayed dry in their leakproof tents

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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 leakproof 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 With a leakproof straw lid and easy carry loop, this Hydro Flask water bottle is perfect for staying hydrated while on the go. — Bestreviews, Chicago Tribune, 19 Aug. 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 Instead, they should be placed in a leakproof container filled with alcohol to kill them, and a doctor should be contacted to safely remove the remaining maggots. — Shiv Sudhakar, FOXNews.com, 14 July 2026 The plastic bottle is leakproof, with an easy-to-use (and clean) drinking spout. — Taylor Fox, Travel + Leisure, 23 June 2026 For example, ads for Knix’s leakproof underwear were spotted inside New York City subway cars this spring, and often on Hulu. — Alyssa Goldberg, USA Today, 8 June 2026 The tumbler’s leakproof lid also rotates for three comfortable sipping positions. — Sian Babish, PEOPLE, 3 June 2026

Recent Examples of Synonyms for 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

Adjective

Some of the nations attending the meeting in western Ukraine's Ivano-Frankivsk region, such as Poland and Romania, have been staunch supporters of Ukraine.

— Arkansas Online, Arkansas Online, 19 Sep. 2026
Some of the nations attending the meeting in western Ukraine’s Ivano-Frankivsk region, such as Poland and Romania, have been staunch supporters of Ukraine.

— Samya Kullab, Los Angeles Times, 18 Sep. 2026

Definition of staunch

Browse Nearby Words

leak (out)

leakproof

leaks

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“Leakproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/leakproof. Accessed 19 Sep. 2026.

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Synonyms of leakproof

adjective

Example Sentences

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