(Philosophy) Fundamental; ultimate; intrinsic; free from the variability and error natural to the human way of thinking and perception. [First attested in the late 18th century.]
Being entirely without flaw or imperfection.
The definition of impeccable is defined as something that is faultless.
Able to be depended on for the discharge of obligations incurred; of unimpaired credit.
Find another word for indefectible. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for indefectible, like: absolute, consummate, faultless, flawless, impeccable, perfect, unflawed and good.