motorless

Thân thiện

A small motorless sailboat glides across the calm lake.

Definition

1. Adjective:
   • Having no motor; lacking an engine or motor: Describes a device, vehicle, or machine that operates without an internal combustion engine or electric motor, typically powered by human force, wind, or other non-motorized means.

Usage Examples

• Adjective:
  • The lake only allows motorless boats like canoes and rowboats.
  • For a quiet and eco-friendly commute, she prefers her motorless bicycle.
  • Early aviation experiments included many motorless gliders.

Advanced Usage

• Technical/Descriptive Use: Often used in technical, regulatory, or descriptive contexts to specify the type of propulsion.
  • The zoning laws designate this area for motorless recreation only.
• Comparative Use: Can be used to contrast with motorized versions.
  • The motorless version of the appliance is cheaper but requires more manual effort.

Variants and Related Words

• Unpowered (adj): A close synonym, often used interchangeably in technical contexts (e.g., unpowered flight).
• Human-powered (adj): Specifically indicates power from human effort (e.g., a human-powered vehicle).
• Sail-powered (adj): Specifically indicates power from wind captured by sails.

Synonyms

• Unmotorized
• Engine-less
• Non-motorized

Antonyms

• Motorized
• Powered
• Engine-driven

Related Phrases/Compounds

• Motorless vehicle: Any vehicle that does not use a motor, such as a bicycle, skateboard, or horse-drawn carriage.
• Motorless flight: Refers to gliding or soaring in an aircraft without an engine, such as in a glider or hang glider.

Học thuật

Adjective

1. having no motor

Từ đồng nghĩa

• unmotorized
• unmotorised