heedfulness heedfully • heedily · · · Info · Definitions · Synonyms · Antonyms · Characters · · heedfulness · · Text Latin · · Script 11 · · Length Definitions · · · (noun) the trait of staying aware of (paying close attention to) your responsibilities. Synonyms: mindfulness. · · Noun Definition 1 Synonyms · · · mindfulness · · Synonym 1 Antonyms · · · unmindfulness · · Antonym 0 heedlessness · · Antonym 1 inadvertence · · Antonym 2 inadvertency · · Antonym 3 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075