Key
Key adjective - Coming before all others in importance.
Usage example: maintains that Sir Isaac Newton remains the key figure in physical science
Unimportant
Unimportant adjective - Lacking importance.
Usage example: we figured that the details were unimportant as long as we got the basic design correct
Key is an antonym for unimportant.
Nearby Words: unimportance, unimportantly
Both words in one sentence
- He eventually realized the host's physical health was unimportant, but rather high intelligence was the key to prolonged survival.
Source: Possession Burnout
Cite this Source
Unimportant and Key. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/key/unimportant
Key & Unimportant. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/key/unimportant>.
Unimportant or Key. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/key/unimportant.
Google Ngram Viewer shows how "key" and "unimportant" have occurred on timeline