- the state or quality of being obstinate; specif.,
- resistance to treatment; persistence, as of a disease
- pl. -·cies an obstinate act, attitude, etc.
Origin of obstinacyMiddle English obstinacie ; from Medieval Latin obstinatia, for Classical Latin obstinatio
- The state or quality of being stubborn or refractory.
- The act or an instance of being stubborn or refractory.