Hard
Hard adjective - Very strong or vigorous.
Usage example: a hard left to the chin
Knockout
Knockout adjective - Very strong or vigorous.
Usage example: a knockout punch
Mutual synonyms
Both words in one sentence
- In the boxing world, Antonio Margarito was a feared power puncher that had knockout power in both hands, and a rock hard chin.
Source: Cheaters Never Prosper - TNA's Knockout Division got hit with this rather hard and fast.
Source: Reactionary Fantasy -
Free Floor Fighting: On several stages, if you perform a hard knockout hit on the edge a special cinematic occurs to rub in the humiliation.
Source: Video Game / Street Fighter V
Cite this Source
Knockout and Hard. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/hard/knockout
Hard & Knockout. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/hard/knockout>.
Knockout or Hard. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/hard/knockout.
Google Ngram Viewer shows how "hard" and "knockout" have occurred on timeline