Adjective

(-)

Domineering, arrogant, or overbearing.

* 1866 – , translated by C. J. Hogarth

...she glanced about her in an imperious , challenging sort of way, with looks and gestures that clearly were unstudied.

Urgent.

* 1891 –

Circumstances of an imperious nature, which it is unnecessary to relate here, had prevented him from taking service with that gallant army which had fought the disastrous campaigns ending with the fall of Corinth.

(obsolete) Imperial or regal.

* 1895 –

She was quick, beautiful, imperious , while he was quiet, slow, and misty.

Adjective

(en adjective)

Unduly confident; arrogant; presumptuous; conceited.

* Shakespeare

Here's an overweening rogue.

She wins one modeling contest in Montana and suddenly she's overweening .

*1870 ,

*:No success rendered him overweening and no disaster was ever known to stagger his firmness.

*1908 , Frederic Bancroft and William A. Dunning,

*:The Senate was displaying an overweening hauteur as if it were the government.

Exaggerated, excessive

* {{quote-web

, date=20150104 , year= , first= , last= , author=Jonathan Rauch , authorlink= , title=How to Make Men Free , site=NY Times citation , archiveorg= , accessdate=21050215 , passage=The idea that an overweening federal government is a threat to both freedom and equality (not to mention prosperity) goes back to Jefferson, James Madison, Patrick Henry and some other fairly respectable personages. }}