Which term refers to being recklessly bold or rash?

The term that best refers to being recklessly bold or rash is "foolhardy." This word captures the essence of taking unnecessary risks without considering the potential consequences. A foolhardy individual often acts with a disregard for danger or consequence, demonstrating a kind of boldness that lacks prudence or wisdom.

In contrast, the other options do not convey the same meaning. "Glib" refers to speaking in a smooth but often insincere manner, usually lacking depth; it does not relate to recklessness. "Feckless" describes someone who is ineffective or lacking in initiative, which does not imply bold action. "Rampant" refers to something that is growing or spreading uncontrollably, often used in a different context such as diseases or behaviors, without a direct connection to rashness or boldness.

Thus, "foolhardy" accurately describes a person who acts boldly without regard for risks, making it the correct choice.