The word in bold refers to what? Tiber

not hesitating or fearful in the face of actual or possible danger or rebuff; courageous and daring:a bold hero. 2. not hesitating to break the rules of propriety; forward; impudent:He apologized for being so bold as to speak to the emperor. 3. necessitating courage and daring; challenging:a bold adventure. 4. beyond the usual limits of conventional thought or action; imaginative:Einstein was a bold mathematician. a difficult problem needing a bold answer. 5. striking or conspicuous to the eye; flashy; showy:a bold pattern. 6. steep; abrupt:a bold promontory. 7. Nautical. deep enough to be navigable close to the shore:bold waters. 8. Printing. typeset in boldface. 9. Obsolete. trusting; assured.