Related Clues:
- Get annoyed after cut stalk is unproductive
- Unable to have offspring
- A person who is doubtful cold will go, aiming to keep germs at bay
- Lab so clean, unable to reproduce results
- Unable to reproduce
- Ineffective steps taken to protect top female
- A man not easily fooled gets rid of a cold, avoiding germs
- Answer given by unbeliever without church's lead is sterile
- Bacteria-free
- Unproductive way European money once got raised
- Rest and lie about, being unproductive
- The way to cause annoyance, staying obstinate to the end like a mule
- Clean crackers set cheese off
- Unable to have children
- Uninspired setter to get angry