adjective, filth·i·er, filth·i·est.
verb (used with object), filth·ied, filth·y·ing.
Related formsfilth·i·ly, adverbfilth·i·ness, noun
Examples from the Web for filthiest
Prairie du Pont is one of the dampest, filthiest, most disagreeably ruinous of all the old villages I have ever visited.
I verily believe that the poorer classes of the Norwegians are the filthiest people in Europe.Northern Travel|Bayard Taylor
For, giving himself out as a salt-distiller, he performed base offices among the servants who did the filthiest work.The Danish History, Books I-IX|Saxo Grammaticus ("Saxo the Learned")
I did not even know, as I do now, that "cleaning" is the filthiest job the trade possesses.The Woman Who Toils|Mrs. John Van Vorst and Marie Van Vorst
The ordinary fly is one of the worst and filthiest transmitters of disease in existence.Manual of Military Training|James A. Moss