Impeccable
Impeccable adjective - Being entirely without fault or flaw.
Unctuous and impeccable are semantically related. In some cases you can use "Unctuous" instead an adjective "Impeccable".
Nearby Words: impeccability, impeccably
Unctuous
Unctuous adjective - Not being or expressing what one appears to be or express.
Impeccable and unctuous are semantically related. Sometimes you can use "Impeccable" instead an adjective "Unctuous".
Nearby Word: unctuously
Mutual synonyms
Cite this Source
Unctuous and Impeccable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/impeccable/unctuous
Impeccable & Unctuous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/impeccable/unctuous>.
Unctuous or Impeccable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/impeccable/unctuous.
Google Ngram Viewer shows how "impeccable" and "unctuous" have occurred on timeline