Passive

Passive may refer to:
 * Passive voice, a grammatical voice common in many languages, see also Pseudopassive
 * Passive language, a language from which an interpreter works
 * Passivity (behavior), the condition of submitting to the influence of one's superior
 * Passive-aggressive behavior, resistance to following through with expectations in interpersonal or occupational situations
 * Passive income, income resulting from cash flow received on a regular basis
 * Passive immunity, the transfer of active humoral immunity
 * Passive experience, observation lacking reciprocal interaction; and wrought with delusion of control.

Science and technology

 * Passivation (chemistry), process of making a material "passive" in relation to another material prior to using the materials together
 * Passivity (engineering) a property of engineering systems, particularly in analog electronics and control systems
 * Passive solar building design, which uses (or avoids) sunlight as an energy source without active mechanical systems
 * Passive house, a standard for energy efficiency in buildings
 * Passive mode, in regard to how a data connection is established in File Transfer Protocol

Entertainment

 * "Passive" (song), by A Perfect Circle