WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
not aware or knowing
adjective.
unaware because of a lack of relevant information or knowledge
adjective.
not done with purpose or intent
Word Usage
"I explained to Edna that without the benefit of her explanation a person at home would understand the ad to mean that all storage was half off and accused Sears of deliberately making the ad ambiguous to draw in unwitting customers."