The phrase "laid on the line" means to be completely honest and upfront about something. The antonyms for this phrase would be words or phrases that indicate being dishonest, insincere, or withholding important information. Some examples of antonyms might include: being deceitful, dishonest, hiding the truth, evasive, or deceptive. These words or phrases suggest hiding or obscuring the truth rather than being open and transparent. Using these antonyms can damage trust in personal or professional relationships and may lead to misunderstandings or conflicts. It is important to communicate openly and honestly to maintain healthy relationships and avoid misinterpretations.