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
- marsh fleawort
- marsh foxtail
- marsh frog
- marsh gas
- marsh gentian
- marsh goose
- marsh grass
- marsh groundsel
- marsh hare
- marsh harrier
- marsh hawk
- marsh hen
- marsh holy-rose
- marsh holywort
- marsh horsetail
- marsh mallow
- marsh marigold
- marsh milkweed
- marsh owl
- marsh parsley
- marsh pea
- marsh peep
- marsh pennywort
- marsh pine
- marsh pink