heedful
[adjective]
Synonyms: attentive, advertent, arrect, intentive, observant, regardful, mindful, observative, observing, thoughtful, careful, conscientious, conscionable, exact, fussy, meticulous, painstaking, punctilious, punctual, scrupulous

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Antonyms: heedless, unheeding

[TahlilGaran] English Synonym Dictionary ▲

heed·ful (hēdfəl)
adj.
Paying close attention; mindful. See Synonyms at careful.

[TahlilGaran] American Dictionary ▲

heedful
heedful·ly adv.
heedful·ness n.

[TahlilGaran] American Dictionary ▲