Nihilistically is an adverb that describes a belief in nihilism, the rejection of moral and religious principles. Synonyms for this word include cynically, pessimistically, and fatalistically. Cynically refers to a distrust in human nature and motives, while pessimistically describes a negative view of the future. Fatalistically implies a submissive attitude towards fate or destiny. Other synonyms for nihilistically include nihilist, nihilism, and nihilistic, all of which are related to the rejection of traditional values and beliefs. The use of these words may indicate a philosophical or world-weary perspective, suggesting a lack of hope and a disregard for conventional wisdom and norms.