flusteredly

Example:He appeared flustered, likely by the unexpected situation.

Definition:showing signs of nervousness or agitation, often due to being confused or embarrassed

Example:She was perplexed by the problem before her, unable to think clearly.

Definition:confused; at a loss to know what to do or how to proceed

Example:He was anxious about the upcoming exam, his mind flustered by doubts.

Definition:uneasy; worried; fearful of some impending event or danger