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ug·ly/ˈəglē/

Adjective:
  1. Unpleasant or repulsive, esp. in appearance.

cute/kyo͞ot/

Adjective:
  1. Attractive in a pretty or endearing way.
Ugly cute  /ˈəglē/ /kyo͞ot/

Being both pretty/endearing and unpleasant/repulsive at the same time:
“Kyary makes such ugly cute faces!”