Sour and rotten milk is an example of something that would be described as malodorous.
There were tons of malodorous garbage bags outside her house.
The malodorous aroma filled the room, causing people to leave.
Naphthalene and the usual malodorous powders are not only very disagreeable, but quite useless.
There was some malodorous corruption occuring in the executive's office.
How can you prevent your stinky shoes from becoming so malodorous?
Be careful not to breathe in the malodorous fumes of the chemical solution.