in·fin·i·ti·val /(ˌ)ɪnˌfɪnəˈtaɪvəl/ (a.)不定詞的
In·fin·i·ti·val a. Pertaining to the infinite mood. “Infinitival stems.” ◄ ►
infinitival adj : relating to or formed with the infinitive; "infinitival clause"