[ fyoo-uhl-i-fish-uhnt ]

  1. producing power, heat, etc., at a rate considered optimal with regard to the amount of fuel consumed.

Other words from fuel-efficient

  • fu·el-ef·fi·cien·cy, noun

Words Nearby fuel-efficient

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use fuel-efficient in a sentence