Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Usage example: difficult questions on the exam that required analytical thinking
Knotty is a synonym for difficult in complicated topic. In some cases you can use "Knotty" instead an adjective "Difficult", when it comes to topics like intricate, problematical. popular alternative
Nearby Word: difficulty
Knotty
Knotty adjective - Having many parts or aspects that are usually interrelated.
Usage example: the knotty problems that arise when every nation is part of the global marketplace
Difficult is a synonym for knotty in complicated topic. You can use "Difficult" instead an adjective "Knotty", if it concerns topics such as troublesome, puzzling, intricate. popular alternative
Mutual synonyms
Cite this Source
Knotty and Difficult. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/difficult/knotty
Difficult & Knotty. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/difficult/knotty>.
Knotty or Difficult. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/difficult/knotty.
Google Ngram Viewer shows how "difficult" and "knotty" have occurred on timeline