- the quality or condition of being inadvertent; heedlessness.
- the act or effect of inattention; an oversight.
- lack of attention; heedlessness
- an instance or an effect of being inadvertent; oversight; slip
mid-15c., from Middle French inadvertance (14c.), from Scholastic Latin inadvertentia, from in- “not” (see in- (1)) + advertentia, from Latin advertere “to direct one’s attention to,” literally “to turn toward” (see advertise).