fuel-efficient
fuel-efficient — adjective
1. A fuel-efficient vehicle, engine, or building uses less fuel than others of the
A fuel-efficient vehicle, engine, or building uses less fuel than others of the same type to do the same work or travel the same distance.
Darius bought a fuel-efficient car that uses half the gas of his old truck.
collocation: fuel-efficient car
The airline replaced its planes with more fuel-efficient models to save money and cut pollution.
comparative form: more fuel-efficient + noun
Ravi chose a fuel-efficient motorcycle for his commute, cutting his petrol costs by nearly half.
A well-maintained engine runs more smoothly and stays fuel-efficient for years.
The government offers tax breaks to people who buy fuel-efficient vehicles.
- economical
broader meaning — can also refer to saving money generally, not just fuel
- efficient
wider in scope — refers to any resource (time, effort, energy), not specifically fuel
- energy-efficient
often used for electrical appliances; overlaps with fuel-efficient for heating systems but not for cars
- fuel-guzzling
informal; describes vehicles that use a lot of fuel
- inefficient
general opposite — wastes any resource, not just fuel
用法筆記
Commonly used to compare products: one model is more fuel-efficient than another. Often appears before the noun it describes (fuel-efficient car, fuel-efficient engine).