Adjective: overweening 'ow-vu(r)'wee-ning
- Presumptuously arrogant
"had a witty but overweening manner"; "no idea how overweening he would be";
- uppity [informal]
- Unrestrained, especially with regard to feelings
"overweening ambition";
- excessive, extravagant, exuberant
See also: immodest, unrestrained