From Japanese-English FreeDict Dictionary ver. 0.1:
恣 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 擅 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 縦 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 肆 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, ほしいまま /hˌo̞ɕiːmˈämä/ (adjectival nouns or quasi-adjectives (keiyodoshi))
Note: word usually written using kana aloneselfish, self-indulgent, arbitrary