The antonyms for the phrase "conferring trust" can vary based on the context in which it is used. Here are a few possible options:
1. Betraying distrust: This implies that one is actively working against the trust that has been extended to them, perhaps by breaking promises or sharing confidential information.
2. Withholding trust: This suggests that one is holding back trust that could be given, either by being overly cautious or mistrustful.
3. Violating trust: This is similar to betraying distrust, but implies a more serious violation of trust, such as stealing or committing fraud.
4. Losing trust: This can happen when one fails to live up to expectations or engage in behaviors that break down the trust that has been established.