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heedless

[heed-lis] /ˈhid lɪs/
adjective
1.
careless; thoughtless; unmindful:
Heedless of the danger, he returned to the burning building to save his dog.
Origin of heedless
1570-1580
1570-80; heed + -less
Related forms
heedlessly, adverb
heedlessness, noun
Synonyms
oblivious, indifferent; negligent, uncaring, unconcerned.
Antonyms
cautious, mindful, heedful.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for heedless

heedless

/ˈhiːdlɪs/
adjective
1.
taking little or no notice; careless or thoughtless
Derived Forms
heedlessly, adverb
heedlessness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for heedless
adj.

"without regard," 1570s, from heed + -less. Related: Heedlessly; heedlessness.

Online Etymology Dictionary, © 2010 Douglas Harper
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12
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