"Frenetical" is an adjective that describes an intense state of activity, excitement, or enthusiasm. It can be synonymous with other words that convey a similar meaning. For instance, "frantic" encapsulates a sense of rapidly paced and chaotic behavior. "Energetic" suggests vibrant and lively activity. "Zealous" describes a fervent or passionate approach towards a certain task. "Exuberant" refers to a vibrant and joyful enthusiasm. "Hectic" conveys a sense of being extremely busy and chaotic. "Agitated" characterizes a state of restlessness or agitation. "Intense" captures a high level of activity, often accompanied by a strong emotional or physical impact. Overall, these synonyms help to convey the vibrant and passionate nature of the word "frenetical".