Scummy
Part of speech: adjective
Definition: Covered in scum. sleazy, worthless, no good
Dirty
Part of speech: verb
Definition: To make (something) dirty.To stain or tarnish (somebody) with dishonor.To debase by distorting the real nature of (something).To become soiled.
Part of speech: adverb
Definition: In a dirty manner.
Part of speech: adjective
Definition: Unclean; covered with or containing unpleasant substances such as dirt or grime.That makes one unclean; corrupting, infecting.Morally unclean; obscene or indecent, especially sexually.Dishonourable; violating accepted standards or rules.Corrupt, illegal, or improper.Out of tune.Of color, discolored by impurities.Containing data which need to be written back to a larger memory.Carrying illegal drugs.
Example sentence: It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters.