The antonyms for the word "soberminded" are associated with behavior that is reckless, impulsive, and irrational. Some of the antonyms of soberminded are foolish, wild, irrational, illogical, impetuous, reckless, and irresponsible. These are the characteristics of a person who acts without restraint and does not consider the consequences of their actions. They are self-indulgent and have no regard for the safety of themselves or others. In contrast, soberminded people are careful, cautious, and level-headed, and act in a rational and responsible manner. The antonyms of soberminded, therefore, describe people who lack judgment and self-control, and are prone to making bad decisions that can have serious consequences.