unassailable

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. without flaws or loopholes
- an ironclad contract
- a watertight alibi
- a bulletproof argument
• Syn:
unshakable, watertight, bulletproof
• Similar to:
incontestable, incontestible
2. immune to attack;
incapable of being tampered with
- an impregnable fortress
- fortifications that made the frontier inviolable
- a secure telephone connection
• Syn:
impregnable, inviolable, secure, strong, unattackable
• Similar to:
invulnerable
• Derivationally related forms:
impregnability (for: impregnable), secureness (for: secure)
3. impossible to assail
• Syn:
untouchable
• Similar to:
inviolable

• Từ đồng nghĩa / Synonyms:
  unshakable, watertight, bulletproof, untouchable, impregnable, inviolable, secure, strong, unattackable