The Collaborative International Dictionary of English v.0.48:

Heedy \Heed"y\, a.
   Heedful. [Obs.] "Heedy shepherds." --Spenser. -- Heed"i*ly,
   adv. [Obs.] -- Heed"i*ness, n. [Obs.] --Spenser.
   [1913 Webster]