Select the most appropriate meaning of the given Idiom: "As cool as a cucumber"

Someone who worries less

The most appropriate meaning of the idiom "as cool as a cucumber" is someone who worries less. This idiom comes from the literal meaning of the phrase, which is that a cucumber is a cool vegetable. However, the phrase came to be used figuratively to describe someone who is calm and collected, even in a stressful situation.

For example, if you say that someone is "as cool as a cucumber," you mean that they are not worried or upset, even though they are in a difficult situation. Or, if you say that you want to be "as cool as a cucumber," you mean that you want to be calm and collected, even when things are tough.