unassailable

• unassailable

unassailable

Adjective

immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"

Synonyms:

• impregnable
• inviolable
• secure
• strong
• unassailable
• unattackable

Adjective

impossible to assail

Synonyms:

• unassailable
• untouchable

Adjective

without flaws or loopholes; "an ironclad contract"; "a watertight alibi"; "a bulletproof argument"

Synonyms:

• unassailable
• unshakable
• watertight
• bulletproof