The phrase "know score" refers to being aware of the current situation or status quo. The antonyms for this phrase include ignorance, unawareness, naivety, and cluelessness. If someone does not know the score, they may be caught off guard or blindsided by unexpected events. Conversely, those who are knowledgeable about the score have an advantage, as they can make informed decisions and take appropriate actions. It is essential to be aware of both the positive and negative aspects of the phrase "know score" to leverage its meaning effectively in different contexts.