As an adjective incautious
is careless, reckless, not exercising proper caution.
As a noun recklessness is
the state or quality of being reckless or heedless, of taking unnecessary risks.
careless, reckless, not exercising proper caution
* 1749, Henry Fielding, The History of Tom Jones, a Foundling
* 1912 , Stratemeyer Syndicate, Baseball Joe on the School Nine Chapter 1
- "You might have remained so still," replies Jones, "if you had not been unfortunate, I will venture to say incautious , in the placing your affections.
- "Yes, let 'Sister' Davis have a whack at it too," urged George Bland. Tom Davis, who was Joe Matson's particular chum, was designated "Sister" because, in an incautious moment, when first coming to Excelsior Hall, he had shown a picture of his very pretty sister, Mabel.
* (l), (l) (obsolete)
The state or quality of being reckless or heedless, of taking unnecessary risks.
- His recklessness repeatedly put him in danger.