Observant
Up on
Up on adjective - Being up to particular standard or level especially in being up to date in knowledge.
Mutual synonyms
Both terms in one sentence
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Kyle was originally a very eager and sincere guy who, while not well educated, was intelligent, observant and sometimes even eloquent, but not quick witted or able to pick up on hints.
Source: Series / Last Man Standing -
The observant reader may pick up on the fact that all three of them live up to their names throughout the story.
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He's also keenly observant, often picking up on things before others do, and noticing details others might overlook.
Source: Big Good
Cite this Source
Up on and Observant. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/observant/up_on
Observant & Up on. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/observant/up_on>.
Up on or Observant. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/observant/up_on.
Google Ngram Viewer shows how "observant" and "up on" have occurred on timeline