Heed"less, a.
Without heed or care; inattentive; careless; thoughtless; unobservant.
O, negligent and heedless discipline!
Shak.
The heedless lover does not know
Whose eyes they are that wound him so.
Waller.
-- Heed"less*ly, adv. -- Heed"less*ness, n.
© Webster 1913.