Synonyms for Stereotype:

adj.

average (adjective)
median, halfway, middle-of-the-road, usual, mean, standard, mid, normal, commonplace, mezzo, stock, conventional, customary, average, dominant, common, middling, ordinary, predominant, everyday, moderate, run-of-the-mill, mediocre, midmost, medium.

n.

idea, philosophy, theory, ideal, principle, faith, commitment, belief, thought. incline, have a mind of your own, truism, platitude, adhere to, believe in, hold, bromide, banality, think, reckon, say, know best, consider, surprise. template, prototype, example, case, model, archetype, instance, the personification of something. convention (noun)
custom, institution, conventional notion, fashion.
idea held as standard, example (noun)
average, fashion, institution, custom.
platitude (noun)
bromide.
stereotype (noun)
stamp, pigeonhole.

v.

categorize as being example, standard (verb)
pigeonhole.
cognition (verb)
stamp, pigeonhole.

Other synonyms:

example, archetype, instance, prototype, bromide. banality, template, truism, platitude. model. case. Other relevant words:
example, instance, fashion, truism, platitude, bromide, pigeonhole, banality, stamp, custom, institution, case, archetype, model.