Regardless of consequences is an expression that refers to acting or making decisions without considering the possible negative outcomes that may result. There are several phrases that can be used as synonyms for this phrase such as "come what may," "reckless abandon," "heedless of consequences," "without reservation," "irrespective of the outcome," "with abandon," and "with total disregard." These phrases all convey a similar meaning of making a decision or taking an action without consideration of the potential or actual repercussions. It is important to exercise caution when using such phrases as they can often imply rash or impulsive behavior.