unassailable

View results from: Wordnet | Webster | Wiktionary | Easton

unassailable in WordNet English dictionary

adjective

without flaws or loopholes
"an ironclad contract"; "a watertight alibi"; "a bulletproof argument"
unassailable unshakable watertight bulletproof
immune to attack; incapable of being tampered with
"an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
impregnable inviolable secure strong unassailable unattackable
impossible to assail
unassailable untouchable

WordNet Lexical Database v3.0, © 2006 Princeton University

unassailable in English Wiktionary

(adjective) secure against attack; impregnable
(adjective) (context/by extension) undeniable, incontestable or incontravertible

Wiktionary, GNU Free Documentation Licence