The term "most sugar-coated" indicates an over-the-top or exaggerated display of sweetness. The antonyms for this phrase would be words that suggest a lack of sweetness or a more straightforward approach. Some antonyms could include words like bitter, harsh, abrasive, blunt, honest, or even critical. It is important to note that using these words effectively will depend on the intended tone and meaning of the phrase. The words can be used to convey a sense of realism, honesty, or negativity, depending on the context of the sentence. Overall, antonyms for "most sugar-coated" convey a more objective, honest, and unvarnished approach to communication.