SOUNDPROOF Synonyms: 45 Similar and Opposite Words

soundproof 1 of 2

adjective

Definition of soundproof

as in waterproof

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Dissimilar Words

soundproof

2 of 2

verb

as in to insulate

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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 soundproof

Adjective

Inside of the massive buildings, hundreds of servers hum within gigantic soundproof and waterproof chambers. — Jessica Hill, Fortune, 9 Apr. 2026 The interior common door [had been] flimsy and not very soundproof. — Kelly McGreal, FOXNews.com, 30 Mar. 2026

Verb

Head to the backside of the library, where architects used glass partitioning and rammed earth to nearly soundproof the space from both Caltrain horns and the children’s area. — Linda Zavoral, The Mercury News, 24 Mar. 2025 In New York there was a black site above a bustling food court, the windows darkened and the rooms soundproofed so that the screaming never reached the people sitting below. — Lidija Haas, Harper's Magazine, 3 Mar. 2025 See All Example Sentences for soundproof

Recent Examples of Synonyms for soundproof

Adjective

Puma's Ignite Elevate 2 provides responsive foam and a waterproof, breathable upper with stability features.

— Scott Kramer, Forbes.com, 8 July 2026
Some bags advertise waterproof material, while others have water-resistant bottoms or in some cases, no resistance at all.

— BestReviews, Mercury News, 8 July 2026

Definition of waterproof

Verb

And with Brown, VJ Edgecombe and Dean Wade on the roster, James would also be insulated from defending on the perimeter at a high volume.

— Tony Jones, New York Times, 14 July 2026
These entities are typically aimed at insulating the parent company from the risks and liabilities of a speculative investment.

— Business Columnist, Los Angeles Times, 14 July 2026

Definition of insulate

Adjective

For now, access appears limited to the steadily expanding group of organizations granted access to Claude Mythos Preview through Anthropic’s — not entirely watertight — private Project Glasswing initiative.

— Robert Hart, The Verge, 9 June 2026
Tunnels are also not truly watertight, requiring drainage measures like sump pumps and creating maintenance and reliability issues, the group advised.

— Skyler Swisher, The Orlando Sentinel, 15 Feb. 2026

Definition of watertight

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

Browse Nearby Words

sound (out)

soundproof

soundproofed

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Cite this Entry

Style

“Soundproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/soundproof. Accessed 17 Jul. 2026.

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Synonyms of soundproof

adjective

verb

Example Sentences

Browse Nearby Words

Cite this Entry

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