unassailable

• Many observers believed Button's 32-point advantage over Vettel before Silverstone was unassailable, but if the Silverstone trend was to continue, the young German could easily mathematically win the title. —  Motorsport.com: F1 news
• In what they do know they are unassailable, and until the old formula is destroyed by their own hands and replaced by a more newly-discovered one, there is no use fighting against Achilles -- unless, indeed, one is for - —  The Book Of THoTH, Popular Articles from The Archive Category - UFO Section 3
• While the evidence against him might be tainted by the prosecution's missteps, much of it is unassailable: audio tapes of him discussing his misdeeds with his old buddy and co-conspirator Bill Allen, and the hundreds of thousand dollars in renovations unreported on his taxes. —  The Guardian World News
• When Bernard Madoff made off with $50 billion from elite investors, it caused a virtual tectonic shift in the idea of unassailable integrity among the Wall Street chieftains. —  SeekingAlpha.com: Home Page
• "Those who become arrogant, who become drunk with power, who seemingly are unassailable: watch out," Tutu said at a memorial service for veteran anti-apartheid politician Helen Suzman in Johannesburg on 1 March. —  AllAfrica News: Latest

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context