Dictionary and Thesaurus

Definition of Unassailable

• (adjective satellite) without flaws or loopholes; "an ironclad contract"; "a watertight alibi"; "a bulletproof argument"
• (adjective satellite) impossible to assail
• (adjective satellite) immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"

Synonyms of Unassailable

• Impregnable
• Inviolable
• Secure
• Strong
• Unattackable
• Untouchable
• Unshakable
• Watertight
• Bulletproof

Antonyms of Unassailable

Homophones of Unassailable