qualmyish
/ˈkwɔːmlɪʃ/Definitions
1. adjective
having a faintly unpleasant smell, like something that is off or spoiled.
“The spoiled milk had a qualmyish odor that filled the entire room.”
2. noun
A faintly unpleasant smell or odor, especially one that is off or spoiled.
“The qualmyish in the fridge was due to expired food.”