Ingratiate oneself with is a phrase that implies trying to win someone's favor or approval by flattery or other means. The antonyms for ingratiate oneself with include showing disrespect, disregarding, or showing insubordination in the situation. Other antonyms for ingratiate oneself with include being offensive, rude, or insolent, as well as showing resentment, hostility, or animosity. While ingratiating oneself with someone can lead to certain advantages, it is important to consider the impact on one's self-respect and integrity. In conclusion, instead of trying to manipulate or impress others, the best way to build authentic relationships is to be genuine and respectful.