Source : Webster's Revised Unabridged Dictionary (1913)

Fearless \Fear"less\, a.
   Free from fear.

   Syn: Bold; courageous; intrepid; valorous; valiant; brave;
        undaunted; dauntless; heroic. -- {Fear"less*ly}, adv. --
        {Fear"less*ness}, n.

Source : WordNet®

fearlessly
     adv : without fear; "fearlessly, he led the troops into combat"
           [syn: {dauntlessly}, {intrepidly}] [ant: {fearfully}]