Rational
Rational adjective - Having the ability to reason.
Understanding and rational are semantically related. In some cases you can use "Understanding" instead an adjective "Rational".
Understanding
Understanding adjective - Having or showing the capacity for sharing the feelings of another.
Rational and understanding are semantically related. Sometimes you can use "Rational" instead an adjective "Understanding".
Mutual synonyms
Both words in one sentence
- Not only is she the most understanding and rational person in the entire series, she actually knows how stupid Annette and Lucien are behaving toward each other and gently calls Annette out on her grudge.
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Hikari is kind, tranquil, rational and understanding.
Source: Manga / Evangelion 303 - She is also extremely rational and seems to have problems with understanding human emotions.
Source: Ambiguous Disorder
Cite this Source
Understanding and Rational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/rational/understanding
Rational & Understanding. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/rational/understanding>.
Understanding or Rational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/rational/understanding.
Google Ngram Viewer shows how "rational" and "understanding" have occurred on timeline