i-adjective
Describes a feeling or attitude of pride, often with a nuance of self-importance or looking down on others. Can be used positively for justified pride, but often carries a negative connotation of arrogance.
彼は自分の成功を誇らしげに話した。
He spoke proudly of his success.
あの人はいつも誇らしい態度で、あまり好きになれない。
That person always has an arrogant attitude, so I can't really like them.