The phrase "take powder" typically means to disappear or leave quickly, but there are many antonyms that could be used in its place. Instead of "taking powder," one could choose to "arrive," "come," "show up," or "stay." Other opposite words might include "appear," "emerge," or "materialize." While "take powder" conveys a sense of sudden disappearance, these alternative words paint a different picture of continuous presence or deliberate action. It's important to choose the right antonym for a particular situation to best convey the intended meaning.