"Smelled high heaven" is a phrase that is often used to describe an overwhelmingly strong and unpleasant odor. There are several synonyms for this phrase, including "stunk to high heaven," "reeked," "reeking," "fetid," "malodorous," "putrid," "rank," "stench," and "stenchy." These words can be used interchangeably to convey a similar meaning to that of "smelled high heaven." Each of these synonyms carries its own unique connotations and nuances, allowing writers and speakers to choose the one that best suits their message or intent. Overall, these synonyms offer a varied and expressive vocabulary for describing unpleasant smells.