not cautious; careless; reckless; heedless.

Origin of incautious

1695–1705; in-3 + cautious; compare Latin incautus in same sense
Related formsin·cau·tious·ly, adverbin·cau·tious·ness, noun

Synonyms for incautious Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for incautious

Contemporary Examples of incautious

Historical Examples of incautious

  • In the morning of this very day, I was simple, and incautious, and complying.


    William Godwin

  • This incautious speech by no means tended to appease the ferocity of the crowd.

    Barnaby Rudge

    Charles Dickens

  • Lambert was incautious of his own safety in his great concern for his horse.

  • An incautious word, and you may find yourselves in a most difficult position.

    The Destroyer

    Burton Egbert Stevenson

  • Palgrave was always extreme; his language was incautious--violent!

British Dictionary definitions for incautious



not careful or cautious
Derived Formsincautiously, adverbincautiousness or incaution, 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

Word Origin and History for incautious

1703, from in- (1) + cautious. Related: Incautiously.

Online Etymology Dictionary, © 2010 Douglas Harper