The Collaborative International Dictionary
Adonist
Adonist \A*do"nist\ ([.a]*d[=o]"n[i^]st), n. [Heb. One who maintains that points of the Hebrew word translated ``Jehovah'' are really the vowel points of the word ``Adonai.'' See Jehovist.
Wiktionary
adonist
n. One who maintains that the vowel points of the Tetragrammaton translated "Jehovah" are the vowel points that belong to the word ''Adonai.''