The term "most out-to-lunch" refers to a person who is absent-minded, detached, or uninvolved. Antonyms for this phrase include attentive, focused, alert, aware, and responsive. Being attentive implies paying close attention to details, while being aware means being conscious of one's surroundings. Being focused implies channeling one's attention towards a specific task or goal, while being responsive indicates being receptive to ideas or suggestions. Therefore, if someone is not "most out-to-lunch," it means they are present and engaged, which is essential for success in any situation.