Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Uncertain and difficult are semantically related. In some cases you can use "Uncertain" instead an adjective "Difficult".
Nearby Word: difficulty
Uncertain
Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.
Difficult and uncertain are semantically related. Sometimes you can use "Difficult" instead an adjective "Uncertain".
Nearby Words: uncertainty, uncertainly
Mutual synonyms
Both words in one sentence
- Walpole's new majority was difficult to determine because of the uncertain loyalties of many new members, but contemporaries and historians estimated it as low as fourteen to eighteen.
Source: Useful Notes / Robert Walpole -
In both cases, their refusal sparks a difficult boss fight that ends with them alive and their fate uncertain (they're subdued, but doctors also appear to back down on their extreme plans in favour of other measures.)
Source: Bedlam House - The Revolution Will Not Be Civilized: Machiavelli explains why:It ought to be remembered that there is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success, than to take the lead in the introduction of a new order of things.
Source: Literature / The Prince
Cite this Source
Uncertain and Difficult. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/difficult/uncertain
Difficult & Uncertain. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/difficult/uncertain>.
Uncertain or Difficult. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/difficult/uncertain.
Google Ngram Viewer shows how "difficult" and "uncertain" have occurred on timeline