pseudoprophetess
/ˌs(j)uːdəʊˌprɒfɪˈtɛs/ /ˌs(j)uːdəʊˈprɒfɪtɪs/noun
A false prophetess; a woman who falsely claims to be a prophetess, or who prophesies falsely.
Origin
Late 17th century; earliest use found in Henry More (1614–1687), philosopher, poet, and theologian. From pseudo- + prophetess, after pseudoprophet.