Definition: not sure about the best way to respond
Part of Speech: Adjective
Synonym(s): baffled, puzzled
Antonym(s): enlightened, clarified
1. Since I was nonplussed about missing a million-dollar question, I took a while phrasing my response.
2. The nonplussed suspect stuttered when he spoke to the detectives.
3. If the actress appears nonplussed about responding to one of your questions, you should move on to the next topic.