The phrase "gave the come-on" typically refers to someone flirting or making sexual advances towards another person. Antonyms for this phrase could include: ignored, avoided, rejected, disliked, disdained, or snubbed. These words represent the opposite of giving someone attention or signals of romantic interest. Instead, they indicate a lack of interest or even outright rejection. It's important to note that not everyone will appreciate or feel comfortable with someone giving them the come-on, and antonyms like these are useful ways to express an aversion to such behavior. In the end, communication and consent are crucial in any interaction, especially when it comes to matters of intimacy.