adjective

1. influenced or acted upon without exerting influence or acting in return; inactive, but acted upon
2. offering no opposition or resistance; submissive; yielding; patient
3. taking no active part; inactive
4. 1. Chem. inert (sense )
   2. resistant to corrosion
5. Finance of or relating to an investment that does not involve active participation in management, policy making, etc. passive losses
6. Gram.
   1. denoting the voice or form of a verb whose subject is the recipient (object) of the action of the verb: opposed to active
   2. in or of the passive voice in “The tree was struck by lightning,” was struck is a passive construction

Etymology: ME passif < L passivus < passus: see passion

noun

1. the passive voice
2. a verb in this voice