1
[ adjective ] showing lack of careful thought

Examples

"the debate turned into thoughtless bickering"

Used in print

(John Cheever, "The Brigadier and the Golf Widow,"...)

Mrs._Pastern undertook the work of going from house to house with the thoughtless resignation of an honest and traditional laborer .

(Arthur Miller, "The Prophecy," in The Best...)

But just when she seemed to have sunk into some depravity of peasanthood she would disappear and come_down bathed , brushed , and taking_breaths of air , and even with her broken nails her hands would come to rest on a table or a leaf with a thoughtless delicacy , a grace of history , so_to_speak , and for an instant one saw how ferociously proud she was and adamant on certain questions of personal value .

2
[ adjective ] marked by or paying little heed or attention

Synonyms

heedless unheeding

Examples

"We have always known that heedless self-interest was bad morals we know now that it is bad economics"- "Franklin D. Roosevelt "heedless of danger" "heedless of the child's crying"

3
[ adjective ] without care or thought for others

Synonyms

unthinking uncaring

Examples

"the thoughtless saying of a great princess on being informed that the people had no bread `Let them eat cake'"

Related terms

inconsiderate

4
[ adjective ] (usually followed by `of') without due thought or consideration

Synonyms

regardless careless

Examples

"careless of the consequences" "the proverbial grasshopper--thoughtless of tomorrow" "crushing the blooms with regardless tread"

Related terms

heedless

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