adjective, filth·i·er, filth·i·est.
verb (used with object), filth·ied, filth·y·ing.
- filter tip,
- filterable virus,
- filtering operation,
- filthy lucre,
- filtration angle
Origin of filthy
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
adjective filthier or filthiest
In early use often hardly more emphatic than the mod. dirty; it is now a violent expression of disgust, seldom employed in polite colloquial speech. [OED]