Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not watchful

from The Century Dictionary and Cyclopedia

  • Not vigilant.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not alert to what is potentially dangerous

Etymologies

un- +‎ watchful (Wiktionary)

Examples

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