As an adjective obnoxious
is extremely unpleasant, offensive, very annoying, odious or contemptible.
As a noun jackassery is
the foolish or obnoxious behaviour of a jackass.
* obnoctious (obsolete)
Extremely unpleasant, offensive, very annoying, odious or contemptible.
- He was an especially obnoxious and detestable specimen of a man.
(archaic) exposed to harm or injury.
* 1661 , , page 26,
- Throwing stones at the bus is another example of your obnoxious behaviour.
- To begin then with his Experiment of the burning Wood, it seems to me to be obnoxious to not a few considerable Exceptions.
The foolish or obnoxious behaviour of a jackass.
*1955 , edition, ISBN 0553249592, page 134:
*:the hypothesis that Karnow had made a new will deserved a little exploration. To ask any of you about it would of course have been jackassery .