DictionaryarrantComplete in a bad way
adjective

arrant

AIR-unt/ˈærənt/

Complete or utter, especially in a bad quality.

The player hiding cards behind his back is an arrant cheat.

A grinning cheat visibly hides several playing cards behind back while opponents' plain card hands lie on table; obvious blatant dishonesty without card lettering.
Etymology

From an ancestor meaning “traveling, roving,” arrant first carried the disparaging sense “wandering, vagrant.” It then became an intensifier meaning “downright” or “notorious,” emphasizing the completeness of a quality rather than literal wandering.

In context

Storytime Haven5:18
my yacht, the _Lola_, and last night we unfortunately went aground on the Meloria. I have a new captain whom I engaged a few months ago, and he seems an arrant fool.
The Czar's Spy: The Mystery of a Silent Love 🕵️‍♂️💘 | William Le Queux Classic Spy Thriller

More examples

  • He called the scheme arrant fraud.
  • The witness exposed the statement as an arrant lie.
  • Such arrant arrogance alienated even his closest allies.

Similar words

utter
A general intensifier that is not restricted to bad qualities.
unmitigated
Emphasizes that nothing lessens the negative quality.