heedful vs attentive

heedful and attentive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
heedful	No	Yes	No	No
attentive	No	Yes	No	No

As adjectives, heedful and attentive are synonyms defined as:

heedful and attentive: taking heed; giving close and thoughtful attention

Other synonyms of heedful include paying attention, thoughtful.

heedful (adjective)	attentive (adjective)
taking heed; giving close and thoughtful attention	(often followed by `to') giving care or attention
giving attention	taking heed; giving close and thoughtful attention
cautiously attentive