A faculty member of your university purportedly assigned to help students plan their course schedules to fit each student's degree and career plans but who are not required to know or provide accurate information regarding available courses, pre-requisites, required courses, course alternatives, etc. and often supply advice that ends up being detrimental to the student.
Side of "academic advising" include:
Taking one or more classes that are unnecessary and ending up taking 5 years to earn a 4 year degree.
Realizing 2 weeks before graduation that you could have graduated a semester early if it weren't for that "career exploration" class you took freshman year that your advisor recommended you take to "discover your calling" or "meet people in your major."
Realizing that those transfer credits actually could have transferred and you did not need to re-take that class.
My academic advisor said I had to take a full year of underwater basket weaving courses for my degree, turns out I don't and now I won't graduate this semester.
My advisor screwed me over, I'll never the mistake of taking his advice again.