Antonyms for the phrase "were undecided" could include terms such as "clear," "focused," "resolved," and "determined." These antonyms suggest a level of certainty and confidence in decision-making, which is the opposite of being indecisive or uncertain. Other possible antonyms for "were undecided" could be "committed," "confident," "sure," "resolved," or "convinced." Each of these words conveys a sense of assuredness and a willingness to take action, rather than remaining passive or uncertain. By exploring these antonyms, individuals can gain a better understanding of the importance of making confident decisions and taking decisive action in their personal and professional lives.