‘Ambivalent' is adjective.
‘Ambivalence' is noun, ‘ambivalently' is adverb.
Meaning: with mixed feeling.
1. He seems to be ambivalent about his new job.
2. He has an ambivalent approach towards her.
3. There was ambivalence among church members about women becoming priests.
4. There was an ambivalent opinion of the public on the nuclear deal.