The antonyms for the phrase "made acquaintance" include words such as "ignored," "avoided," "overlooked," "neglected," and "dismissed." By avoiding or neglecting to make acquaintance with someone, you may prevent yourself from forming a connection or bond with that person. However, there are times when not making acquaintance with someone is necessary for personal safety or well-being. Moreover, dismissing someone based on their race, gender, or social status is detrimental to the development of a diverse society. Therefore, it is crucial to approach new people with an open mind, even if they are different from yourself.