It suggests:
* Contempt: A feeling of superiority or disdain for the target.
* Ridicule: The use of words or actions to make someone or something appear foolish or inferior.
* Sarcasm: The use of irony or humor to express a negative opinion.
Examples:
* "He mocked her accent."
* "She laughed mockingly at his attempt to sing."
* "The children mocked the old man's limp."
Mockingly implies a deliberate and often malicious intention to cause hurt feelings or damage someone's reputation.