Hard
Valid
Valid adjective - Based on sound reasoning or information.
Usage example: only further investigation will show whether your theory is valid
Nearby Words: validity, validation
Both words in one sentence
- Many translations of poems are valid, but it's a hard job for translators to balance the need for clarity with preserving the author's original intentions with the poem.
Source: Lost in Translation -
This was sometimes hard to generate, and in fact, the copyright office would accept as valid the use of the letter C in parenthesis "(C)" as being equivalent to "©".
Source: Useful Notes / Copyright -
Ian makes some pretty valid points about how vague the "signs of death" are, pointing out that virtually anything could be interpreted as a sign if you're looking hard enough.
Source: Film / Final Destination 3
Cite this Source
Valid and Hard. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/hard/valid
Hard & Valid. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/hard/valid>.
Valid or Hard. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/hard/valid.
Google Ngram Viewer shows how "hard" and "valid" have occurred on timeline