Antonyms for the phrase "thinks over" include words such as ignore, neglect, disregard, dismiss, and brush off. These terms suggest a lack of consideration or attention to a particular thought or idea. Other antonyms include impulsive actions, such as acting without thinking, reacting rashly, or making hasty decisions. In contrast to thinking over a problem or situation, these antonyms imply a lack of thoughtful introspection or reflection. These antonyms reflect a mindset that values speed and efficiency over thoroughness and reflection. Ultimately, they can lead to negative consequences and missed opportunities for growth and understanding.