Antonyms for the word "are perplexed" would be words that describe a lack of confusion or a clear understanding of a situation. Synonyms include words like confident, certain, assured, decisive, and resolved. These words are often associated with a sense of clarity and understanding, indicating that the individual or group in question does not feel troubled or uncertain in their understanding of a particular issue. These antonyms may be especially useful in situations where it is important to convey a sense of certainty or conviction, such as in a debate, argument, or negotiation. By using the right antonyms, individuals can effectively articulate their perspective and convey their beliefs with confidence and clarity.