Deism is a philosophical belief that acknowledges the existence of a creator, but denies the intervention of that creator in the world's affairs. Contrary to this belief, the term 'most deistic' refers to a spiritual or religious concept that leans heavily towards deism. However, antonyms for the word 'most deistic' include words like 'atheistic,' which refers to the disbelief in the existence of a deity, and 'theistic,' which affirms the existence of a personal God who intervenes in the world. Other antonyms include 'pantheistic,' 'polytheistic,' and 'monotheistic,' which all denote varying degrees of belief in the supernatural. In conclusion, the antonyms for the phrase 'most deistic' cover a range of spiritual and religious beliefs outside of the narrow confines of deism.