Meanings
adjectivecannonproof (not comparable)
- not comparableImpenetrable by cannonballs.
A cannonproof breastwork, built during the previous war, extended along the beach from the hills to the rocks.
1983, Richard J. Hargrove, General John Burgoyne, page 261 more example
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.
1948, Frances Winwar, The Saint and the Devil, page 33
Origin
Cite this entry
APA
cannonproof. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cannonproof
MLA
“cannonproof.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cannonproof. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “cannonproof,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cannonproof.
Source: cannonproof on Wiktionary, CC BY-SA 4.0.