postiche

Noun postiche has 2 senses

• postiche(n = noun.artifact) false hair, hairpiece - a covering or bunch of human or artificial hair used for disguise or adornment;
has particulars: afro-wig, switch, toupe, toupee, wig
is a kind of attire, dress, garb

• postiche(n = noun.artifact) fake, sham - something that is a counterfeit; not what it seems to be;
has particulars: fake book, potemkin village
is a kind of imitation