We don't have synonyms for confiteor yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are confiseur, confuter and confider.
(n) :
(Christianity, chiefly Roman Catholicism) A prayer, typically beginning “I confess to Almighty God…” in English, in which public confession of sins is made.
(n) :
Alternative letter-case form of confiteor. [(Christianity, chiefly Roman Catholicism) A prayer, typically beginning “I confess to Almighty God…” in English, in which public confession of sins is made.]
(n) :
(Christianity, chiefly Roman Catholicism) A prayer, typically beginning “I confess to Almighty God…” in English, in which public confession of sins is made.
(n) :
Alternative letter-case form of confiteor. [(Christianity, chiefly Roman Catholicism) A prayer, typically beginning “I confess to Almighty God…” in English, in which public confession of sins is made.]