How many letters does the top answer for “one who advocates or practices infant baptism.” have?

The most common answer is pedobaptist (11 letters).

Crossword clue: one who advocates or practices infant baptism.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

pedobaptist 11 letters web-def

One who advocates or practices infant baptism. [Written also pædobaptist.]

one who advocates or practices nephalism. 50% similar → nephalist

one who advocates or practices opportunism. 50% similar → opportunist

one who advocates the practice of cremation. 50% similar → cremationist