Being subjected to an action without producing a reaction.
Taking no action.
He remained passive during the protest.
(grammar) Being in the passive voice.
Being inactive and submissive in a relationship, especially in a sexual one.
Not participating in management.
Without motive power.
a passive balloon; a passive aeroplane; passive flight, such as gliding and soaring
Of a component: that consumes but does not produce energy, or is incapable of power gain.