overweeningly

adverb

1. In an overweening way; arrogantly.

- At size 8, I had to admit, I was so self-conscious (and secretly, overweeningly proud of it) that often that was all I was. — France Kuffel, Size and Sensibility, Psychology Today, Vol. 38, Iss. 1; pg. 64, 5 pgs, Jan/Feb, 2005