Entry 2 senses · 2 variants Webster, 1913 Sentimentalize · Sen·ti·men·tal·ize · IPA v. t. v. i. 01 v. t. To regard in a sentimental manner; as, to sentimentalize a subject. 1. To regard in a sentimental manner; as, to sentimentalize a subject. 02 v. i. To think or act in a sentimental manner, or like a sentimentalist; to affect exquisite sensibility. 1. To think or act in a sentimental manner, or like a sentimentalist; to affect exquisite sensibility.