"Getting down to brass tacks" is a phrase used to describe the act of getting to the heart of a matter or dealing with important details. Some antonyms for this phrase might include avoiding important details, procrastinating, or focusing on unimportant details. To avoid getting down to brass tacks, one might use vague language, ignore key issues, or delay discussions. However, this approach can ultimately hinder progress and result in miscommunication or wasted time. Therefore, it's important to be proactive and efficient when dealing with important matters, and to avoid procrastination or distraction.