infrangible

But despite the Presidential Records Act — which requires the preservation of memos, letters, notes, emails, faxes and other written communications related to a president’s official duties — the former president’s infrangible shredding practices apparently continued well into the latter stages of his presidency.

Infrangible, in-fran′ji-bl, adj. that cannot be broken: not to be violated.—ns.

Chamber, 416.Rhinothism, society for promoting, 427.Rhyme, whether natural not considered, 393.Rib, an infrangible one, 435.Richard the First of England, his Christian fervor, 399.Riches conjectured to have legs as well as wings, 420.Robinson,

Here Vulcan forged those infrangible chains, that impenetrable armor—the shield of Achilles and the sword of Hector.

Its spongy, infrangible walls received the balls from the batteries like a cotton bale, or sand battery, almost without making an impression; this may be seen on examination, since the marks remain to this day, as they were left at the end of the siege, one hundred and seventeen years ago.