Without any defense, the castle was a sitting duck for the invading army
The unencrypted data on his laptop made him a sitting duck for hackers
She felt like a sitting duck during the awkward silence after her embarrassing comment
The small boat was a sitting duck in the middle of the storm
With no allies, the country was a sitting duck to its aggressive neighbors
His constant complaining made him a sitting duck for office gossip
The poorly maintained server was a sitting duck for cyberattacks
Once they discovered his secret, he became a sitting duck for blackmail
The solitary hiker was a sitting duck in the vast, empty wilderness
The company's outdated technology made it a sitting duck for competitors
We are exposed without any defenses.
Exactly, we are like a sitting duck.
We need to find cover immediately.
Without reinforcements, the outpost was a sitting duck
The outpost was vulnerable without any support
The outpost was exposed and defenseless