The phrase "be line for" typically means to be headed towards something or to be next in line for something. Therefore, some antonyms for this phrase might include "going away from," "avoiding," "missing out on," or "standing at the back of the line for." Other possible antonyms might depend on the context in which the phrase is used. For example, if "be line for" refers to being next in line for a promotion, antonyms could include "passed over," "overlooked," or "not considered." Similarly, if the phrase refers to being headed towards a dangerous situation, antonyms could include "veering away," "escaping," or "avoiding danger.