Asiduo (en. Regular)

/a.siˈðu.o/

Slang Meanings

Someone who is always present.
That guy is a regular at all the parties.
Ese chico es un asiduo en todas las fiestas.
Someone who always repeats an action or attitude.
He is so frequent in his complaints that we no longer pay attention to him.
Es tan asiduo en sus quejas que ya no le hacemos caso.