We found one dictionary that defines the word deiist:

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1. deiist: Rhymezone

Definitions from WordNet (deiist) ▸ adjective:  of or relating to theism Opposite: atheist, agnostic, non-believer ▸ Words similar to deiist ▸ Usage examples for deiist ▸ Idioms related to deiist ▸ Wikipedia articles (New!) ▸ Popular nouns described by deiist ▸ Words that often appear near deiist ▸ Rhymes of deiist ▸ Invented words related to deiist