Wiktionary
arrantest
a. (en-superlative of: arrant)
Usage examples of "arrantest".
The liquor soon mounted into their heads, as it generally does even with the arrantest topers newly landed from sea, and they began capering about most obstreperously.
The Lord above knows who it was told her: for I am the arrantest villain that ever walked upon two legs if ever it came out of my mouth.