Impeccable
Impeccable adjective - Being entirely without fault or flaw.
Required and impeccable are semantically related. In some cases you can use "Required" instead an adjective "Impeccable".
Nearby Words: impeccability, impeccably
Required
Required adjective - Forcing one's compliance or participation by or as if by law.
Impeccable and required are semantically related. Sometimes you can use "Impeccable" instead an adjective "Required".
Nearby Words: requirement, requiring
Both words in one sentence
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Required to be impeccable on the surface, most false realities are built to trap (or at least contain) their inhabitants.
Source: A Glitch in the Matrix -
In FreeSpace 2, the player can choose to partake in a recon mission in an unknown, Shivan controlled system with no backup or support and with impeccable timing being required just to get home alive.
Source: Suicide Mission -
That particular trick required the coordination only a Jedi Master (read: C'baoth) could provide; the impeccable split-second timing necessary to pull it off could not have been achieved otherwise.
Source: Stealth in Space
Cite this Source
Required and Impeccable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impeccable/required
Impeccable & Required. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impeccable/required>.
Required or Impeccable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impeccable/required.
Google Ngram Viewer shows how "impeccable" and "required" have occurred on timeline