There are several synonyms for the phrase "out thought" that can be used to describe a situation where someone has surpassed or exceeded another person's cognitive abilities. Some of these synonyms include outsmarted, outwitted, outmaneuvered, outmatched, and outpaced. These words all suggest a level of superiority and intelligence that has allowed one person to outshine another in a particular field or scenario. Whether it's in a game of chess, a business negotiation, or a scientific debate, these words capture the essence of someone who has demonstrated a higher level of mental acuity and intellect than their opponent.