Dumb
Dumb adjective - Not having or showing an ability to absorb ideas readily.
Usage example: don't call him dumb just because he makes the occasional mistake like the rest of us
Thinking
Thinking adjective - Having the ability to reason.
Usage example: it's surprising to find thinking people who believe such nonsense
Both words in one sentence
- The other characters note he's an idiot, but when he gets into a fight, through either quick thinking or dumb luck, he's surprisingly capable.
Source: Manga / Final Fantasy XII - Like, thinking that street crooks aren't dumb enough to incriminate themselves, or thinking that an assassination on a drug kingpin like Tuco won't draw in Salamancas like flies (as Mike warns him).
Source: Reality Ensues / Live-Action TV -
She's not actually dumb, although her cultural mindset and self-centered personality sometimes get in the way of thinking clearly.
Source: Dumb Blonde
Cite this Source
Thinking and Dumb. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/dumb/thinking
Dumb & Thinking. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/dumb/thinking>.
Thinking or Dumb. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/dumb/thinking.
Google Ngram Viewer shows how "dumb" and "thinking" have occurred on timeline