said of a person: lacking in energy, will, or initiative; meekly accepting
offering no resistance; submissive
acted on, receptive to, or influenced by external forces or impressions
in grammar, said of a verb form or voice: expressing an action that is done to the grammatical subject of a sentence, e.g. was hit in the ball was hit
said of a sentence: containing a passive verb form
said of an electronic device: using no electrical power for amplifying or controlling an electrical signal
said of radar or satellites: operating solely by means of the power of an input signal
said of a missile: operating by intercepting signals emitted from a target
in or characterized by a state of chemical inactivity, esp resistant to corrosion
not involving expenditure of chemical energy