UNSINKABLE Synonyms: 17 Similar and Opposite Words

unsinkable

adjective

Definition of unsinkable

as in buoyant

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 unsinkable Crimea, long treated by Moscow as an unsinkable aircraft carrier and logistics hub, becomes a liability. — David A. Deptula, Forbes.com, 30 June 2026 More than 113 years after the Titanic sank in April 1912, the idea of an unsinkable ship still captures engineers’ imagination. — Sujita Sinha, Interesting Engineering, 28 Jan. 2026 The study, published on January 27, 2026, in Advanced Functional Materials, builds on Guo’s earlier work designing unsinkable metals. — Deni Ellis Béchard, Scientific American, 3 Feb. 2026 Because the islands are unsinkable, Iranian military positions on them would have to be eliminated to ensure the safe passage of US warships – potentially those carrying US Marine Expeditionary Units (MEUs) – into the heart of the Persian Gulf, if a landing were to be attempted on Kharg Island. — Brad Lendon, CNN Money, 28 Mar. 2026 See All Example Sentences for unsinkable

Recent Examples of Synonyms for unsinkable

Adjective

Johnson and his colleagues are now arguing that the formation of continents on Earth was caused largely by an intense, sustained barrage of asteroid impacts that kept the early crust hot and thin enough to make buoyant continents possible.

— Jacek Krywko, ArsTechnica, 5 July 2026
But estimate-beating earnings reports and buoyant guidance—which the 1990s tech bubble lacked—haven’t been enough to sustain bullishness as investors start to doubt whether profits will come in as strong as expected.

— Jason Ma, Fortune, 5 July 2026

Definition of buoyant

Adjective

Companies with a smaller market value generally tend to have more floating rate debt than larger businesses.

— Lisa Kailai Han, CNBC, 11 Sep. 2025
Social media posts and years of reviewing cookie-cutter luxury hotels had conditioned me to equate floating breakfasts, monogrammed accessories, butler service, and aromatherapy menus as markers of a dreamy luxury vacation.

— Katherine Alex Beaven, Travel + Leisure, 22 Oct. 2024

Definition of floating

Adjective

And while the voucher may increase demand, facilities like this often have to leverage other sources of money to keep programs like Swim Buddies afloat.

— Jonaki Mehta, NPR, 1 July 2026
Meanwhile, explosive growth in the military economy and stimulus spending on infrastructure and social benefits helped Russian households stay afloat, despite stoking inflation.

— Tristan Bove, Fortune, 30 June 2026

Definition of afloat

Browse Nearby Words

unsightly

unsinkable

unskilled

See all Nearby Words

Cite this Entry

Style

“Unsinkable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsinkable. Accessed 7 Jul. 2026.

Copy Citation

Synonyms of unsinkable

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

perfunctory

Popular in Grammar & Usage

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Popular in Wordplay

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World

Popular

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

Games & Quizzes