IPA: /pərˈplɛksɪdli/
KK: /pərˈplɛksɪdli/
In a way that shows confusion or puzzlement.
She looked at him perplexedly when he asked such a strange question.
Perplexedly → It is formed from "perplex" (from Latin "perplexus", meaning entangled or confused) and the suffix "-ly" (meaning in a manner of). The word "perplexedly" means in a manner that is confused or entangled.
Think of being 'entangled' ('perplex') in a situation and acting 'in a manner' ('-ly') that shows confusion.