taking heed; giving close and thoughtful attention
<adj.all> heedful of the warnings so heedful a writer heedful of what they were doing
cautiously attentive
<adj.all> careful of her feelings heedful of his father's advice
giving attention
<adj.all>
Heedful \Heed"ful\, a. Full of heed; regarding with care; cautious; circumspect; attentive; vigilant. --Shak. -- {Heed"ful*ly}, adv. -- {Heed"ful*ness}, n.