unassailable
Americanadjective
-
not open to attack or assault, as by military force or argument.
unassailable fortifications; unassailable logic.
-
not subject to denial or dispute.
Shakespeare's genius gives his works an unassailable position in world literature.
adjective
-
not able to be attacked
-
undeniable or irrefutable
Other Word Forms
Etymology
Origin of unassailable
1590–1600; un- 1 + assailable ( def. )
Explanation
The adjective unassailable means without flaws or loopholes. If you are going to get home late (again!), you'd better have an unassailable alibi for your parents, or else you should plan on not seeing the outside of your room for a while. The adjective unassailable also means immune to attack or doubt, such as an unassailable military holding or an unassailable reputation. Unassailable can also mean untouchable or unable to be defeated. If your high school basketball team is leading 92 to 14 with just a couple of seconds to go, the announcer might say you have an unassailable lead. The corrupt politician had so many connections, he seemed unassailable; he always seemed to manage to deflect even a hint of scandal onto others in the party.
Vocabulary lists containing unassailable
Julius Caesar
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
A Doll's House
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
100 SAT Words Beginning with "U"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But then I hear Chad Bianco and Steve Hilton mewl, and I’m suddenly hoping alongside Anita that someone vanquishes their foes with an unassailable vision.
From Los Angeles Times • Apr. 28, 2026
Zimbabwe are now on an unassailable five points with a game to still to come, while Ireland are third on three points.
From Barron's • Feb. 17, 2026
Ultimately, the desire for a new jazz age is a wish for a new national identity as glamorous and unassailable as old Hollywood.
From Los Angeles Times • Jan. 28, 2026
Mr. Maduro’s prosecution is therefore legally unassailable not because it breaks new ground, but because it so closely follows a 36-year-old template the federal courts have already validated.
From The Wall Street Journal • Jan. 4, 2026
She’d built herself into something perfect and unassailable.
From "Beauty Queens" by Libba Bray
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
