Synonyms of leakproof

leakproof

adjective

as in waterproof

unable to be penetrated by water because of construction or treated material

the campers stayed dry in their leakproof tents

Synonyms & Similar Words

• waterproof
• staunch
• waterproofed
• watertight
• water-resistant
• weatherproof
• nonabsorbent
• rainproof
• water-repellent
• nonporous

Antonyms & Near Antonyms

• porous
• absorbent
• leaky

Example Sentences

Recent Examples of leakproof

Cadence capsules are magnetic, stackable, and leakproof cases to hold liquids most conveniently. — Nneya Richards, Travel + Leisure, 11 Oct. 2026

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

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