Sleazinesses are the qualities of being dirty, dishonest, or not moral.
Sleazinesses are very bad and not good to have.
Examples:
The sleazinesses of the used car salesman were obvious.
I don't like the sleazinesses of that place.
The sleazinesses of his actions were clear to everyone.
The sleazinesses of the situation made me feel uncomfortable.
The sleazinesses of the company's practices were shocking.
The sleazinesses of the politician's behavior were widely reported.