Antonyms for the phrase "stands up against" include words that suggest either passive acceptance or active submission. Some examples of antonyms for "stands up against" are: going along with, conforming to, complying with, giving in to, surrendering to, or accepting without question. While standing up against something may require courage and conviction, these antonyms imply a lack of resistance or assertiveness. However, it's important to note that these antonyms can have different connotations depending on the context and the speaker's intentions. For instance, someone who advocates for peace and empathy might use "forbearance" or "restraint" as antonyms for "stands up against" to suggest a more constructive approach to conflict resolution.