unassailable

/ʌnɐsˈe‍ɪləbə‍l/

/ˌənəˈseɪɫəbəɫ/

unassailable

without flaws or loopholes

impossible to assail

not capable of being criticized, attacked, or doubted

Examples

1. The dimensions of the ABS chassis are unassailable.

2. They have no unassailable claim to place.

3. So we must maintain defenses of unassailable strength.

4. Seemingly nothing can touch the unassailable legacy of Eazy-E, the godfather of gangsta rap.