adj.
Not sincere; hypocritical.
insincerely in'sin·cere'ly adv.
insincerity in'sin·cer'i·ty (-sĕr'ĭ-tē) n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.