Cannonproof

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Impenetrable by cannonballs. not-comparable

    "It had not helped the duke to build himself a cannonproof stone chamber to sleep in for dread of vengeance after the assassination of Orleans."

Example

More examples

"It had not helped the duke to build himself a cannonproof stone chamber to sleep in for dread of vengeance after the assassination of Orleans."

Etymology

From cannon + -proof.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.