Good
Rational
Rational adjective - According to the rules of logic.
Usage example: insisted there was a rational explanation for the strange creaking noises and that there were no such things as ghosts
Good and rational are semantically related. Sometimes you can use "Good" instead the word "Rational" as an adjective or a noun.
Both words in one sentence
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Failure Hero: Moo Yul, who constantly makes what would be good and rational decisions, but always ends up being screwed over because fate seems to hate him and his peers.
Source: Series / White Christmas -
Agent Dana Scully from The X-Files fits this alignment, as she strives to do good and unearth the truth while adhering to what is rational by the laws of science.
Source: Lawful Good -
The Author makes the Drow sympathetic and rational without necessarily making them good; they still keep slaves and have death matches with few qualms about murder.
Source: Webcomic / Drowtales
Cite this Source
Rational and Good. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/good/rational
Good & Rational. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/good/rational>.
Rational or Good. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/good/rational.
Google Ngram Viewer shows how "good" and "rational" have occurred on timeline