1. With curses
   "muttering profanely" 
2. In an irreverent or profane manner
   "he kept wondering profanely why everything bad happened to him"

See also: profane

• reboot
• rebore
• reborn
• rebound
• rebound tenderness
• reboxetine
• rebozo
• rebrand
• rebroadcast
• rebuff
• rebuild
• rebuilding
• rebuke
• rebuker
• rebukingly
• reburial
• rebury
• reburying
• rebus
• rebut
• rebuttable
• rebuttal
• rebutter
• rec room
• recalcitrance