A man who behaves dishonorably, especially toward a woman.
He turned out to be a real cad, breaking her heart without a second thought.
A man who is dishonest or untrustworthy.
She couldn't believe he would stoop so low; what a cad he was to betray his friends.
A scoundrel or rascal.
The story revolved around a charming cad who always got away with his misdeeds.
Etymology
Originated in the late 19th century, possibly from 'cad' in 'cadet' or 'cad' from 'cad meaning a man or fellow, possibly from the earlier term for 'cabbage'.
Common Phrases and Expressions
cad and dad
A phrase often used to indicate a family relationship or contrast between a father and son, where the son is viewed negatively.
what a cad!
An exclamation expressing disapproval of someone's dishonorable behavior.