Definition

1. Adjective:
   • Moved to action; motivated or impelled: Describes a person, thing, or mechanism that has been set in motion or prompted to act by a specific force, influence, or desire.

Usage

• The word "actuated" is primarily used as an adjective. It describes the state of having been prompted into action or motion. It often implies an external or internal force as the cause.
• It is commonly used in both technical contexts (e.g., engineering, mechanics) to describe devices set in motion, and in human contexts to describe behavior driven by motives.

Examples

• Human Motivation:
  • The philanthropist was actuated by a deep sense of compassion for the poor.
  • His confession was actuated by guilt, not by a sudden desire for honesty.
• Technical/Mechanical:
  • The door opens automatically when actuated by a motion sensor.
  • A solenoid-actuated valve controls the flow of water.

Advanced Usage

• "to be actuated by": This is the most common construction, specifying the driving force or motive.
  • The decision was actuated by financial concerns rather than ethical ones.
• Used in formal or analytical writing to discuss the causes of behavior or the operation of systems.

Variants and Related Words

• Actuate (verb): To cause someone to act in a certain way; to cause a machine to operate.
  • The switch actuates the motor.
  • What motives actuated his strange behavior?
• Actuator (noun): A component that is responsible for moving or controlling a mechanism.
  • The robotic arm's movement is controlled by a hydraulic actuator.

Synonyms

• Motivated: Provided with a motive to do something.
• Impelled: Driven or urged forward.
• Prompted: Induced to take action.
• Driven: Powered or strongly motivated.

Antonyms

• Deterred: Discouraged from acting.
• Unmotivated: Lacking a motive or incentive.
• Inactive: Not active or in operation.

Related Phrases

• Spring-actuated: Describes a mechanism put into motion by the release of a spring.
  • The spring-actuated trap snapped shut.
• Pneumatically actuated: Operated by air pressure.
  • The factory uses pneumatically actuated tools.

Adjective

1. moved to action
   • a man actuated by unworthy desired