There are several antonyms for the phrase "Alaska Pacific." One opposite could be the term "Lower 48," which is a colloquialism referring to the contiguous United States. Another antonym could be "Southern Hemisphere," which refers to the portion of the earth south of the equator, including countries such as Australia, New Zealand, and South Africa. Additionally, "Atlantic Ocean" could be considered an antonym, as it represents the body of water east of North America, while Alaska Pacific is westward facing. Finally, "Urban Jungle" could also be an antonym, as it represents a densely populated, metropolitan area, while Alaska Pacific is known for its pristine wilderness and natural beauty.