Mulls over is a phrase that means to contemplate or think deeply about something. It can be helpful to have antonyms for this phrase in order to expand your vocabulary and express your thoughts more precisely. Some antonyms for mulls over include disregard, ignore, neglect, dismiss, and overlook. Disregard means to pay no attention to something, ignore means to intentionally avoid something, neglect means to not give sufficient attention to something, dismiss means to reject an idea or thought, and overlook means to fail to notice something. Using antonyms to mulls over can add nuance and specificity to your language and help you communicate more effectively.