adj. clear, and having no uncertainty or ambiguity
The Century Dictionary and Cyclopedia
Not ambiguous; not of doubtful meaning; plain; perspicuous; clear; certain.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion
adj. having or exhibiting a single clearly defined meaning
Word Usage
"House Speaker John Boehner of Ohio, who is Catholic, said during a floor speech yesterday he will work to overturn what he called an "unambiguous attack on religious freedom in our country.""