The phrase "bear aloft" has a few antonyms that can be used depending on the context. If referring to physically holding something or someone above, below, or level with the head, then the antonyms could be lower, drop, or to bring down. In terms of carrying or lifting something or someone, the antonyms could be release, let go, or set down. If referring to carrying emotionally or mentally, the antonyms could be repress, suppress, or hold back. Ultimately, the antonyms for "bear aloft" depend on the specific meaning and context in which the phrase is being used.