from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Behaving disobediently or mischievously: a naughty child.
- adj. Indecent; improper: a naughty wink.
- adj. Archaic Wicked; immoral.
- n. One that is naughty.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having little or nothing.
- adj. Worthless; bad; good for nothing.
- adj. hence, corrupt; wicked.
- adj. Mischievous; perverse; froward; guilty of disobedient or improper conduct.
from The Century Dictionary and Cyclopedia
- Having nothing; poor.
- Worthless; good-for-nothing; bad.
- Morally bad; wicked; corrupt.
- In a mitigated sense, bad in conduct or speech; improper; mischievous: used with reference to the more or less venial faults or delinquencies of children, or playfully to those of older persons: as, a naughty child; naughty conduct; oh, you naughty man!
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. suggestive of sexual impropriety
- adj. badly behaved
Middle English noughti, wicked, from nought, nothing, evil, from Old English nāwiht, nothing; see naught.(American Heritage® Dictionary of the English Language, Fourth Edition)
From naught + -y. (Wiktionary)