Key
Key adjective - Coming before all others in importance.
Noticeable and key are semantically related. In some cases you can use "Noticeable" instead an adjective "Key".
Noticeable
Noticeable adjective - Likely to attract attention.
Key and noticeable are semantically related. Sometimes you can use "Key" instead an adjective "Noticeable".
Mutual synonyms
Both words in one sentence
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There's a brief scene where he looks at his reflection in a shop window, noting that the folded-down key is a barely-noticeable lump under his jacket.
Source: Wind-Up Key - Out of Order: It's not very noticeable during the first few episodes, but some key events being shuffled around make for Continuity issues.
Source: Series / The Finder -
Other than a key role here and there, most of these models were seen for only a few seconds, as screen filler, or both, so the effect isn't immediately noticeable.
Source: Off-the-Shelf FX
Cite this Source
Noticeable and Key. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/key/noticeable
Key & Noticeable. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/key/noticeable>.
Noticeable or Key. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/key/noticeable.
Google Ngram Viewer shows how "key" and "noticeable" have occurred on timeline