The antonyms for the word "more nailed" can vary depending on the context in which the word is used. If "more nailed" refers to being more secure or firmly fixed, then the antonyms could be loosely fixed, unstable or unsteady. If it refers to having too many nails or being overdone, then the antonyms could be underdone, insufficient or lightly fixed. In general, the antonyms for "more nailed" imply a lack of strength or stability, rather than an excess of it. Therefore, it is important to consider the context in order to determine the appropriate antonyms.