heedless

heed +‎ -less

• IPA^(key): /ˈhiːdləs/

heedless (comparative more heedless, superlative most heedless)

1. Unaware; without noticing; careless; inattentive.

   Antonym: heedful

   Sing we joyous, all together, heedless of the wind and weather.

   • 1785, William Cowper, “Book V. The Winter Morning Walk.”, in The Task, a Poem, […], London: […] J[oseph] Johnson;  […], →OCLC, page 221:

     Brutes […] / Ruminate heedleſs of the ſcene outſpread / Beneath, beyond, and ſtretching far away / From inland regions to the diſtant main.

   • 1910, Emerson Hough, “The Gateway, and Some who Passed”, in The Purchase Price: Or The Cause of Compromise, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC, page 21:

     "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 there. A strong man—a strong one; and a heedless."

• heedlessly
• heedlessness