0 a person who does more than they are expected to do or who is more successful than others:
She is the complete opposite of her brother and is normally seen as the clean-freak, goody-two-shoes, overachiever, and brainiac of the group.
Pretty much an overachiever, she also often acts as the law-abiding/peacemaker during quarrels.
The implicit presumption is that the overachiever is achieving superior results through excessive effort.
She is the classic overachiever she does cheerleading, lacrosse, ballet, is in the student council, and does numerous other extracurricular activities.
In the interview, she said that she became an overachiever in an effort to tell herself that she was okay.
Although she is somewhat of an overachiever, it is revealed that her life is in shambles.
She is an overachiever and strives for perfection for herself and her family.
In a teaching context, an overachiever is an educational label applied to students, who perform better than their peers when normalized for the instructor's perceptions of background, intelligence or talent.
