Impeccable
Impeccable adjective - Being entirely without fault or flaw.
Rational and impeccable are semantically related. In some cases you can use "Rational" instead an adjective "Impeccable".
Nearby Words: impeccability, impeccably
Rational
Rational adjective - Having the ability to reason.
Impeccable and rational are semantically related. Sometimes you can use "Impeccable" instead an adjective "Rational".
Mutual synonyms
Cite this Source
Rational and Impeccable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impeccable/rational
Impeccable & Rational. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impeccable/rational>.
Rational or Impeccable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impeccable/rational.
Google Ngram Viewer shows how "impeccable" and "rational" have occurred on timeline