Save Type Surname (from nickname) Usage Russian, Belarusian Scripts Кислый(Russian) Кіслы(Belarusian) Pronounced Pron. KYEE-sliy(Russian) KYEE-sli(Belarusian) [key·IPA] Other Forms FormsKislyi, Kisły Meaning & History Derived from Russian кислый (kisly) meaning "acid, acidic, sour".