The phrase "not in picture" refers to something or someone that is absent or excluded. Antonyms for this phrase could include "present," "included," "featured," "visible," "manifest," and "prominent." These words indicate the opposite of being absent or excluded, emphasizing the importance of being a part of the picture. For example, in a group photo, someone who is "not in picture" would be the opposite of someone who is "present" or "included" in the photo. Similarly, a topic that is "not in picture" might be the opposite of something that is "featured" or "prominent" in a conversation or presentation.