Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Flat and difficult are semantically related. In some cases you can use "Flat" instead an adjective "Difficult".
Nearby Word: difficulty
Mutual synonyms
Both words in one sentence
- They're all extremely difficult to learn to use to their full potential, but if you do, you've got a really big hammer that can mash enemies flat, in the right circumstances.
Source: Difficult but Awesome -
KW flat out tells Max that life on the island gets difficult but the others are in denial over it.
- In the TV anime, he's so emotionally flat and withdrawn that it's difficult to sympathize with him.
Source: Unintentionally Unsympathetic
Cite this Source
Flat and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/flat
Difficult & Flat. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/flat>.
Flat or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/flat.
Google Ngram Viewer shows how "difficult" and "flat" have occurred on timeline