Synonyms for Advisor:

n.

Dutch Uncle, elder, back seat driver, council, careline, career coach. advisor (noun)
adviser, consultant.
guide (noun)
consultant, instructor, Dutch Uncle, coach, tutor, adviser, teacher, mentor, counselor, guide.
teacher (noun)
guide, headmaster, schoolmaster, trainer, teacher, lecturer, instructor, tutor, guru, mentor, counselor, master, coach, schoolmistress, educator, professor.

Other synonyms:

back seat driver, career coach, careline, Dutch Uncle. council, elder. Other relevant words:
council, adviser, careline, consultant, elder, coach, Dutch Uncle.