The phrase "most lownecked" typically refers to clothing items with a deep neckline. Synonyms for this expression may include "plunging," "deep-cut," "low-cut," "revealing," and "sexy." These words are often used to describe clothing that exposes a significant amount of skin, particularly around the neck and upper chest area. While such clothing may be considered daring or provocative in certain settings, it can also be an elegant and sophisticated fashion choice when worn in a tasteful and appropriate manner. Ultimately, the choice of words used to describe these types of clothing will depend on the speaker's intended tone and context of use.