tutelary UK /ˈtjuːtɪləɹɪ/US /ˈtutɪlɛɹɪ/adjective 3noun 1forms 3 adjective3 •Relating to guardianship or protection.When a minor is involved, tutelary powers frequently accompany powers of attorney. •Of or pertaining to a guardian.My uncle is always happy to discharge his tutelary responsibilities towards me. •Having the qualities of a tutor. noun1 •A deity or spirit serving as a guardian or protector of a place, person, culture, etc.; a tutelar, a tutelary deity. formstutelaries · more tutelary · most tutelary