attentive vs heedful

attentive and heedful both are adjectives.

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

As adjectives, attentive and heedful are synonyms defined as:

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

Other synonyms of attentive include paying attention, thoughtful.

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