a. [ L. intrepidus: cf. F. intrépide. See In- not, and Trepidation. ] Not trembling or shaking with fear; fearless; bold; brave; undaunted; courageous;
n. [ Cf. F. intrépidité. ] The quality or state of being intrepid; fearless bravery; courage; resoluteness; valor. [ 1913 Webster ]
Sir Roger had acquitted himself of two or three sentences with a look of much business and great intrepidity. Addison.
adv. In an intrepid manner; courageously; resolutely. [ 1913 Webster ]