Keen
Both words in one sentence
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She's not keen on people knowing her plain, boring actual first name.
Source: Series / Fresh Meat - Tolkien was quite keen on Meaningful Names in general: virtually all his names have a meaning, be it in Old Norse, Anglo-Saxon, Elvish or plain English (though often enough the meaning came after the name and sometimes even changed over the years).
Source: Meaningful Name / Literature -
Milagro. Devil in Plain Sight: Lampshaded memorably in the very first episode:Dexter (VO): The only real question I have is why in a building full of cops, all supposedly with a keen insight to the human soul, is Doakes the only one who gets the creeps from me?
Source: Series / Dexter
Cite this Source
Plain and Keen. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/keen/plain
Keen & Plain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/keen/plain>.
Plain or Keen. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/keen/plain.
Google Ngram Viewer shows how "keen" and "plain" have occurred on timeline