Definitions

1. adjective

of poor quality; bad or of inferior grade

“The movie was a lousy adaptation of the book.”

2. noun

a person who is considered to be of poor quality or ability

“He’s a lousy golfer, always losing his ball.”

3. interjection

an expression of disappointment or disgust, used to convey that something is bad or unpleasant

“Lousy weather, I was looking forward to a picnic today.”