Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Significant and difficult are semantically related. In some cases you can use "Significant" instead an adjective "Difficult".
Nearby Word: difficulty
Significant
Significant adjective - Clearly conveying a special meaning (as one's mood).
Difficult and significant are semantically related. Sometimes you can use "Difficult" instead an adjective "Significant".
Both words in one sentence
- This is sometimes counterbalanced by One-Hit Kill mechanics, or significant knockback, but having bullets instantly hit you makes for incredibly difficult levels.
Source: Acceptable Breaks from Reality -
The Azula/Zuko shipper fandom was always significant, but the creators surely aren't making it too difficult with certain scenes.
Source: Incest Yay Shipping - Causing PP to constantly warp to the Underground, which was difficult to exit, being unable to spend any significant length of time anywhere else.
Cite this Source
Significant and Difficult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/difficult/significant
Difficult & Significant. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/difficult/significant>.
Significant or Difficult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/difficult/significant.
Google Ngram Viewer shows how "difficult" and "significant" have occurred on timeline