There are a plethora of synonyms available for the phrase "not think for a minute/moment that". One could substitute it with expressions such as "don't believe for a second that", "never assume that", "don't be fooled into thinking", or "don't misconstrue it as". Other examples include "don't entertain the idea that", "never harbor the notion that", or "don't delude yourself into believing". These synonyms can be used in a variety of contexts to emphasize the importance of questioning assumptions and refraining from drawing hasty conclusions. By using these synonyms, individuals can communicate more clearly and convey their message effectively.