Simple Definition of lousy
: bad or poor : of poor quality : not good or skillful
: not well or healthy
: not happy or pleased
Full Definition of lousy
Examples of lousy
She got lousy grades in high school.
I like the work, but the pay is lousy.
He was a lousy husband.
They did a lousy job.
He drank too much and felt lousy the next morning.
It's a lousy, rainy day.
That's a lousy way to treat a friend.
First Known Use of lousy
Medical Definition of lousy
: infested with lice
Seen and Heard
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