We don't have synonyms for passionists yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are passionist, bassoonists and passivists.
(N) :
The Passionists, officially named the Congregation of the Passion of Jesus Christ, abbreviated CP, are a Catholic clerical religious congregation of pontifical right for men, founded by Paul of the Cross in 1720, with a special emphasis on and devotion to the Passion of Jesus Christ.
(N) :
The Passionists, officially named the Congregation of the Passion of Jesus Christ, abbreviated CP, are a Catholic clerical religious congregation of pontifical right for men, founded by Paul of the Cross in 1720, with a special emphasis on and devotion to the Passion of Jesus Christ.