Conforming to standards; proper:
In or into a satisfactory state or condition:
Rigorous is defined as something that is harsh or very strict.
The definition of true is being loyal, something that is real, factually correct, accurate or provable.
Find another word for errorless. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for errorless, like: accurate, correct, exact, precise, right, rigorous and true.