nonfilterable

adjective

non·​fil·​ter·​able ˌnän-ˈfil-t(ə-)rə-bəl 

: not filterable:

a

: not capable of passing through a filter

a thick, nonfilterable liquid

b

: not able to be removed by a filter

nonfilterable residue

Word History

First Known Use

1894, in the meaning defined above