Pas*siv"i*ty (?), n. [Cf. F. passivit'e.]
1.
Passiveness; -- opposed to activity.
Jer. Taylor.
2. Physics
The tendency of a body to remain in a given state, either of motion or rest, till disturbed by another body; inertia.
Cheyne.
3. Chem.
The quality or condition of any substance which has no inclination to chemical activity; inactivity.
© Webster 1913.