IPA: /pərˈplɛksɪti/
KK: /pərˈplɛksɪti/
A state of confusion or uncertainty, often due to something being complicated or difficult to understand.
She looked at the math problem with a sense of perplexity, unsure of how to solve it.
Perplexity → It is formed from "per-" (meaning through) and "plexus" (meaning entwined or woven). The word describes a state of being thoroughly entwined in confusion or uncertainty.
Think of being 'entwined' ('plexus') in a situation that you are going through ('per-') — that's why perplexity means a state of confusion.