Adjective
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presumptuously arrogant
"had a witty but overweening manner"
"no idea how overweening he would be"- S.V.Benet
"getting a little uppity and needed to be slapped down"- NY Times
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unrestrained, especially with regard to feelings
"extravagant praise"
"exuberant compliments"
"overweening ambition"
"overweening greed"