the GNU version of the Collaborative International Dictionary of English
adj. Not being in truth what one appears to be; not sincere; dissembling; hypocritical; disingenuous; deceitful; false; -- said of persons; also of speech, thought; etc..
adj. Disappointing; imperfect; unsound.
The Century Dictionary and Cyclopedia
Not genuine; unsound; imperfect.
Not sincere in character; making a false or hypocritical show of opinions or feelings.
Not sincere in quality; simulated; deceptive; false.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. lacking sincerity
Word Usage
"PARIS - The father and daughter behind France's main far-right party have taken aim at conservative President Nicolas Sarkozy for what they called his insincere tribute to Joan of Arc."