- presumptuously conceited, overconfident, or proud
- exaggerated, excessive, or arrogant
1340, from prp. of overwenen "be conceited, presume," from O.E. ofer-wenian, from ofer + "over" + wenian (see ween).
"His life was dominated by overweening personal ambition and, arguably more important, profound religious faith."
- Charles Mann, 1493: Uncovering the New World Columbus Created