Done several times or in repetition.
"The bird repeatedly landed on the wire, adjusting its feathers each time before taking flight again."
In plain English: Repeatedly means doing something over and over again many times.
"She repeatedly checked her phone to see if he had called."
The word repeatedly is formed by adding the suffix "-ly" to the adjective repeated. This construction simply turns the base meaning of doing something again into an adverb describing how frequently that action occurs.