Adequate
Efficient
Efficient adjective - Producing or capable of producing a desired result.
Usage example: that manual lawn mower is not a very efficient tool for doing a huge yard
Adequate is a synonym for efficient in means topic. You can use "Adequate" instead an adjective "Efficient", if it concerns topics such as adept, useful.
Mutual synonyms
Related pairs
Both words in one sentence
- This is deemed an... adequate... payment, and when the professor sees their organized, efficient system, he turns the eye extraction into an impromptu potions lesson.
Source: Refuge In Audacity / Fan Fic -
Have excruciatingly slow acceleration because they rely on very subtle forces, but are very fuel efficient or use fuel in the space around them (Thus allowing them to reach speeds greater than conventional rockets, since they are able to accelerate for a longer period of time, given adequate fuel).
Source: Reactionless Drive
Cite this Source
Efficient and Adequate. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/adequate/efficient
Adequate & Efficient. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/adequate/efficient>.
Efficient or Adequate. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/adequate/efficient.
Google Ngram Viewer shows how "adequate" and "efficient" have occurred on timeline