Compulsive
Part of speech: adjective
Definition: with an uncontrolled need to do things, obsessive
Example sentence: I come from a family of compulsive collectors, and my first memories are really all about collecting. I remember visiting flea markets with my mother or my grandmother - she goes to local ones around Varese, Italy, every Sunday when she's at home.
Ambitious
Part of speech: adjective
Definition: Possessing, or controlled by ambition; greatly or inordinately desirous of power, honor, office, superiority, or distinction.Strongly desirous—followed by "of" or the infinitive; as, ambitious to be or to do something.Springing from, characterized by, or indicating, ambition; showy; aspiring.
Example sentence: People say it's not ambitious, but it is actually quite ambitious wanting to help people.