the GNU version of the Collaborative International Dictionary of English
n. One who has, or affects, sentiment or fine feeling.
The Century Dictionary and Cyclopedia
n. One who is guided by mere sentiment; a sentimental person; in a better sense, one who regards sentiment as more important than reason, or permits it to predominate over reason.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. someone who indulges in excessive sentimentality
Word Usage
"Ordinary men will always be sentimentalists: for a sentimentalist is simply a man who has feelings and does not trouble to invent a new way of expressing them."