The word "flustered" means feeling confused, nervous, or agitated, often because something unexpected or stressful has happened. When someone is flustered, they might have trouble thinking clearly or acting calmly.

Example:

• She got flustered when she realized she forgot her notes before the presentation.
• He was flustered by the sudden questions during the interview.

If you want, I can also give you synonyms or example sentences!