unassailable
- adjective
- /ˌʌnəˈseɪləbəl/
- The scientist presented an unassailable argument that convinced everyone in the room.
- unassailable evidence
- unassailable logic
- unassailable position
Deductive reasoning is unassailable when the premises are actually true.
- Deductive reasoning is unassailable when the premises are actually true.
- But the Greek culture that conquered the world was, or at least could seem, a finished thing, bristling with unassailable classics.
Examples
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Our complacent assumptions about the unity of American culture were shattered by the unassailable realities of difference.
Academic text (1998) -
Your book, Mr. Murray, is going to be an unassailable... contribution to English scholarship.
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All that matters is power and the unassailable might of money.
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No, but then again, it's never been in an unassailable position inside or outside of the academy.
Academic text (2011) -
Your position in this firm is not unassailable.
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Today, there is even the possibility... that an unassailable base could be established on the Moon... to control world peace.
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Transformation seemed out of the question; the current system is unassailable.
Academic text (2007) -
The logic seems unassailable: nurses are professionals who understand the importance of administering medications as ordered.
Academic text (2001) -
Advances in medicine are among the most universally acknowledged, appreciated, and unassailable benefits of technological progress.
Academic text (2001) -
Although Juba's reputation for bravery is unassailable, he does not glamorize war as a bid for manly valor.
Academic text (2009)
Synonyms
Too strong to be defeated
Very hard to beat in a contest, like a team or player
Too powerful for people to criticize or harm
Hard to prove wrong
Very strict and impossible to change
Clearly true and impossible to doubt
Too strong and well protected for anyone to capture or defeat
Very strong belief or feeling that cannot be changed
Too important or sacred to be broken
Too strong for anyone to defeat
So hard that no one can get past it
Impossible to deny or argue with
Too strong for anyone to beat
So strong and complete that people cannot prove it wrong
Impossible to disagree with because the facts are clear
Completely certain and clearly true
So certain that no one can doubt it
Very hard to defeat in a competition or argument
Certain and impossible to doubt
Cannot be defeated
No one can beat or prove it wrong
Others cannot attack or harm it
Impossible to argue against because the facts are clear
Clearly true and impossible to doubt
Impossible to prove wrong
Certain and clearly true
Impossible to resist or argue against
Antonyms
How Unassailable
Surface Forms
Morphology
unassailable = assailable (transparent) = un + assail + able
Formed by straightforward negation (un-) of the adjective 'assailable', so the relation is clear to learners who know 'assail' or 'assailable'.
Etymology
Unassailable comes from the prefix un- meaning 'not' and the root assail, from an old Latin word that meant 'to jump at' or attack, and you can see the same idea in assault. So unassailable literally means 'not able to be jumped at', which is why it describes something that cannot be attacked, questioned, or defeated.