1. a person who believes that religious differences are unimportant or that all religions are equally valid
Usage: often used in historical or philosophical contexts; can be pejorative when used by those who view religious commitment as important
2. a person who is indifferent or apathetic about matters generally considered important
Usage: less common usage; broader application beyond religion

Examples

• The indifferentist argued that doctrinal disputes between Christian denominations were ultimately meaningless.
• As an indifferentist, she saw no reason to prefer one faith over another.
• The philosopher was criticized as an indifferentist for suggesting that moral frameworks were merely cultural constructs.
• Indifferentists in the 18th century challenged the notion that religious orthodoxy was necessary for a moral society.
• He was no indifferentist when it came to politics; he voted in every election and volunteered for campaigns.