fallaciousEnglish → SpanishOxford English–Spanishfallacious /AmE fəˈleɪʃəs , BrE fəˈleɪʃəs / adjective (formal) 1 (illogical) ‹reasoning/logic/argument› erróneo, falaz2 (misleading) ‹claim/statement/evidence› engañoso, falaz