Narcissistic (adjective)

1. Having an excessive interest in or admiration of oneself and one's physical appearance.
2. Characterized by or showing self-love or self-centeredness.

Origin:

Late 19th century: from greek narcissos "narcissus" + -istic.

Examples:

1. He was a narcissistic person, always talking about himself and his accomplishments.
2. She had a narcissistic personality disorder, characterized by a long-term pattern of exaggerated feelings of self-importance.
3. The politician's speeches were narcissistic, always talking about himself in glowing terms.
4. The young celebrity's tweets were narcissistic, full of selfies and self-promotion.
5. The narcissist always needed to be the center of attention and would do anything to get it.