unassailably
- r in an unalterable and unchangeable manner
- The final product always appeared effortlessly expert, unassailably reasoned, as burnished as literature.
- Bowing to Tojo and his Army Navy colleagues, who are now unassailably entrenched in the Government, the Diet meekly passed four bills which strengthened the military strangle hold.
- The American Vice President-elect may have made a few verbal missteps during the campaign, but the title of Prince of Gaffe belongs unassailably Silvio Berlusconi.