Antonyms for the phrase "take seat" could include standing, walking, or remaining upright. Instead of taking a seat, one could opt to stand in place, walk around, or simply remain upright. Other antonyms might include leaving the area or moving away from a group setting. Depending on the context in which the phrase is used, different antonyms might be more or less appropriate. For example, during a meeting or lecture, the antonym of taking a seat might be speaking, presenting, or leading the discussion. Overall, the antonyms for "take seat" will vary based on the situation and the actions available to the individual.