Entry 1 sense Webster, 1913 Sentimentality /sĕnˌ-təm-ĕn-tăl'-ĭt-ē/ · Sen·ti·men·tal·i·ty · IPA /sˌɛntəmɛntˈælɪtiː/ 01 n. The quality or state of being sentimental. 1. The quality or state of being sentimental.