—adj. (filthier, filthiest)
1 extremely or disgustingly dirty.
2 obscene.
3 colloq. (of weather) very unpleasant.
4 vile.
—adv.
1 filthily (filthy dirty).
2 colloq. extremely (filthy rich).
Phrases and idioms:
filthy lucre
1 dishonourable gain (Tit. 1:11).
2 joc. money.
Derivatives:
filthily adv. filthiness n.
Useful english dictionary. 2012.