Unguarded means not protected or defended, leaving something vulnerable to attack, harm, or entry. In basketball, when a player is unguarded, no defender is covering them, giving them a clear shot. A castle gate left unguarded allows enemies to walk right in. Your bike sitting unguarded outside school could be taken if it's not locked up.

The word also describes being open and honest without holding back. When someone shares unguarded thoughts, they speak freely without carefully choosing their words or hiding their true feelings. You might make an unguarded comment that reveals something you didn't mean to share, perhaps admitting you're nervous about the test when you meant to sound confident.

In an unguarded moment, someone's natural feelings show through. A usually stern teacher might smile broadly at a student's joke in an unguarded moment, revealing the warmth they typically keep hidden. Athletes who celebrate too early can lose in unguarded moments when they stop paying attention before the competition actually ends.

Being unguarded with your emotions means being genuine and transparent. Being unguarded with your belongings means leaving them exposed. Both involve dropping your defenses, whether emotional walls or physical protection.