Princeton's WordNet
heedless, unheeding(adj)
marked by or paying little heed or attention
Synonyms:
heedless, unheeding, recklessAntonyms:
thoughtful, paying attention, careful, attentive, heedfulheedless, reckless(adj)
characterized by careless unconcern
Synonyms:
heady, heedless, foolhardy, unheeding, reckless, rashAntonyms:
heedful, paying attention, attentive, careful, thoughtful
English Synonyms and Antonyms
heedless
As regards mental action, absorbed, abstracted, and preoccupied refer to the cause, absent or absent-minded to the effect. The man absorbed in one thing will appear absent in others. A preoccupied person may seem listless and thoughtless, but the really listless and thoughtless have not mental energy to be preoccupied. The absent-minded man is oblivious of ordinary matters, because his thoughts are elsewhere. One who is preoccupied is intensely busy in thought; one may be absent-minded either through intense concentration or simply through inattention, with fitful and aimless wandering of thought. Compare ABSTRACT.
Synonyms:
absent, absent-minded, absorbed, abstracted, inattentive, indifferent, listless, negligent, oblivious, preoccupied, thoughtlessAntonyms:
alert, attentive, on hand, prompt, ready, thoughtful, wide-awake
Dictionary of English Synonymes
heedless(a.)
Synonyms:
unobserving, unobservant, inattentive, careless, thoughtless, negligent, neglectful, unmindful, regardless, inconsiderate, unwatchful
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