inappreciative

adjective

in·​ap·​pre·​cia·​tive ˌi-nə-ˈprē-shə-tiv 

-ˈpri-,

 also  -ˈprē-shē-ˌā-

: not appreciative

inappreciative of their workers

inappreciatively adverb

inappreciativeness noun

Word History

First Known Use

1869, in the meaning defined above