Hard
Hard adjective - Based on sound reasoning or information.
Usage example: do you have any hard evidence that this was once the site of a Native American village?
Sure and hard are semantically related in certain topic. In some cases you can use "Sure" instead an adjective "Hard", when it comes to topics like true.
Mutual synonyms
Both words in one sentence
- Rool is absurdly hard, to the point the game's hint to defeat it is "Make sure to bring a lot of lives".
Source: Nintendo Hard / Platform Games -
It sure gets hard, though.This game has the Jjaro and Pfhor ship levels, which are similar to the first game's levels, and the levels on Lh'owon, naturally, being similar to those in the second.
Source: Video Game / Marathon - Even he's not sure if it was—he claims to truly be their friend, but even he admits it's hard to outgrow his lying habit, and he's not sure of who he is anymore.
Source: Literature / The Beyonders
Cite this Source
Sure and Hard. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/hard/sure
Hard & Sure. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/hard/sure>.
Sure or Hard. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/hard/sure.
Google Ngram Viewer shows how "hard" and "sure" have occurred on timeline