"heedful" in the adjective sense
1. heedful, attentive, thoughtful, paying attention
taking heed giving close and thoughtful attention
"heedful of the warnings"
"so heedful a writer"
"heedful of what they were doing"
2. careful, heedful
cautiously attentive
"careful of her feelings"
"heedful of his father's advice"
3. advertent, heedful
giving attention
Source: WordNet® (An amazing lexical database of English)
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