After holding his tongue for months, Rudy Giuliani made clear Sunday that he's no fan of Mayor de Blasio, declaring that in many ways the city is moving "in the wrong direction."



"The city was on a very good course, and that needs to be maintained and improved on, and he's kind of turned it around," Giuliani complained.



As recently as last week, Giuliani declined to comment on de Blasio's performance in office, but the two-term former mayor, a Republican, held little back during an interview on WNYM-AM.



De Blasio, a liberal Democrat who took office Jan. 1, is "going in the direction of emphasis on dependency, emphasis on big city government, less emphasis on a very well and very efficiently managed city," Giuliani said.



"All of that seems to be moving the city in the wrong direction," Giuliani told host John Catsimatidis, the grocery store magnate who waged an unsuccessful campaign for mayor last year.



Giuliani dismissed as "foolishness" the proposed ban on carriage horses championed by de Blasio, saying the horse-drawn rides are "one of the reasons" why tourists visit the city.