The antonyms for the phrase "allows go" can include a range of words such as prevent, hinder, detain, stop, restrain, and hold back. Each of these words convey the meaning of preventing someone from going or stopping their movement. For instance, if someone is detained then they are held in custody and not allowed to proceed further. Similarly, if someone is prevented from going then their movement is hindered and they cannot carry on. Therefore, antonyms for "allows go" suggest the opposite meaning and indicate a restriction or obstacle towards movement.