The phrase "taking powder" is an idiomatic expression that means to run away, escape, or flee. It often implies a sudden and stealthy departure from a place or situation. Antonyms for "taking powder" would be words that indicate the opposite action, such as staying put, facing up to the situation, or confronting it head-on. Some antonyms for "taking powder" include staying put, standing your ground, facing the music, accepting the consequences, and dealing with the situation. These words suggest a more responsible, courageous, and accountable approach to dealing with challenges or problems. They encourage people to take ownership of their actions and not to run away from their problems.