"Reel in" is an expression used to mean the act of pulling or drawing something towards oneself, often used to describe fishing or attracting attention. The antonym for "reel in" would be to push away or repel. Other antonyms for "reel in" could include releasing, letting go, rejecting, or dismissing. These words imply an action that moves something or someone away, rather than towards. In some cases, antonyms for "reel in" could also include terms such as ignoring, avoiding, or disregarding, which suggest a lack of effort to attract or engage with something or someone. Overall, antonyms for "reel in" embody the opposite actions and results of attracting or pulling in.