If something is worth a shot, it is worth trying as there is some chance of success. But it was worth a shot.
Was worth a try Meaning?
Deserving of an attempt. When the inspectors boarded the train and I didn't have a ticket, I thought it was worth a try to pretend I didn't speak English. I'm not sure this will work, but it's worth a try. adjective.
What is a shot idiom?
This cartoon is based on the idiom take a shot. Take a shot means 'try to do something; to attempt to do something'. Examples: "I don't know the answer to your question, but I'll take a shot anyway." "I haven't played tennis before but I'm going to take a shot this weekend."