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Definition of unsinkable
unsinkable
/ʌnˈsɪŋkəbəl/
un · sink · a · ble
Adverb:unsinkably
unsinkable Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
4
unsinkable Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Incapable of being sunk or submerged in water (typically of a ship or boat).
Example
"The luxury liner was famously advertised as unsinkable before its maiden voyage."
2
Incapable of being defeated, ruined, or discouraged.
Example
"Her unsinkable optimism helped the team recover from a series of tough losses."
Synonyms
View all synonyms for unsinkable Antonyms
View all antonyms for unsinkable• Rhymes for unsinkable
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Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Unsinkable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unsinkable