misappreciation
/ˌmɪsəˌpriːʃɪˈeɪʃn/ /ˌmɪsəˌpriːsɪˈeɪʃn/noun
Failure to appreciate, understand, or assess something correctly or fully. Also (occasionally): an instance of this.
Origin
Mid 19th century; earliest use found in United States Magazine and Democratic Review. From mis- + appreciation, after misappreciate.