Adjective fearless has 4 senses
  1. unafraid, fearless - oblivious of dangers or perils or calmly resolute in facing them
  2. brave, courageous, fearless - possessing or displaying courage; able to face and deal with danger or fear without flinching; "Familiarity with danger makes a brave man braver but less daring"- Herman Melville; "a frank courageous heart...triumphed over pain"- William Wordsworth; "set a courageous example by leading them safely into and out of enemy-held territory"
  3. doughty, fearless, hardy - resolute and without fear
    Antonyms: unmanly, unmanful, unmanlike (indirect, via manly)
  4. audacious, brave, dauntless, fearless, intrepid, unfearing - invulnerable to fear or intimidation; "audacious explorers"; "fearless reporters and photographers"; "intrepid pioneers"
    Antonym: timid (indirect, via bold)
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