研けん究きゅう熱ねっ心しんConjugationsMeaningsNa-adjective1. of inquiring mind; eager to study; enthusiastic in studyingKanji used研refine究research熱heat心heartComposed of研けん究きゅうresearch; study; investigationNoun熱ねっ心しんzealous; enthusiastic; ardent; fervent; keen; eagerNa-adjective