heedless

Adjective

1. Unaware; without noticing; careless; inattentive.
   • Sing we joyous, all together, heedless of the wind and weather.
   • Brutes […] / Ruminate heedleſs of the ſcene outſpread / Beneath, beyond, and ſtretching far away / From inland regions to the diſtant main. - 1785, William Cowper, “Book V. The Winter Morning Walk.”, in The Task, a...
   • "A fine man, that Dunwody, yonder," commented the young captain, as they parted, and as he turned to his prisoner. "We'll see him on in Washington some day. He is strengthening his forces now against Mr. Benton out...

   Antonyms: heedful