true believer

noun

1

: a person who professes absolute belief in something

2

: a zealous supporter of a particular cause

Synonyms of true believer

• partisan
• militant
• crusader
• activist

Examples of true believer in a Sentence

they were true believers in an antimaterialist lifestyle, as evidenced by their lack of possessions

true believers who fought the good fight even when it was out of fashion

Recent Examples on the Web

Last summer, Amy Gleason became a true believer in the wonders of artificial intelligence. —Elizabeth Dwoskin, Washington Post, 4 June 2026

What has lagged is the on-field product—and Bennett, who has watched the USMNT’s results with the particular anguish of a true believer, is unsparing about why. —Nick Lichtenberg, Fortune, 2 June 2026

Trump’s intraparty victims are not true believers in MAGA thought, if such an ideology even exists. —Jonathan Chait, The Atlantic, 27 May 2026

Just as Adolf Eichmann and Albert Speer portrayed themselves not as true believers but as mere functionaries, so Vadim presents himself to Lawrence as a master of method, not of principle. —Richard Brody, New Yorker, 13 May 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for true believer

• unbeliever
• achiever
• deceiver
• perceiver
• receiver
• reliever
• retriever
• transceiver
• cleaver
• fever
• leaver
• weaver