unassailable

Speech parts

1. unassailable - Noun

2. unassailable - Adjective

3. unassailable - Adjective Satellite

without flaws or loopholes

immune to attack; incapable of being tampered with

impossible to assail

Source: WordNet

strong secure impregnable inviolable unshakable watertight bulletproof untouchable unattackable certain good sound indubitable positive absolute

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cod chancy affected academic assumed dangerous

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an ironclad contract Source: Internet

a watertight alibi Source: Internet

a bulletproof argument Source: Internet

an impregnable fortress Source: Internet

fortifications that made the frontier inviolable Source: Internet

a secure telephone connection Source: Internet