Final answer:
An impartially omniscient third-person narrator provides an unbiased view of a story from an outside perspective, with comprehensive knowledge of the characters' thoughts and actions but without judging or influencing the narrative.
Step-by-step explanation:
A third-person narrator who does not evaluate or judge the characters in a story is known as having impartial omniscience. This type of narrator relates to the story from an outside perspective, often with a God's eye view, and has access to all information, including the thoughts and feelings of the characters. However, despite their comprehensive knowledge, an impartially omniscient narrator remains neutral and unbiased, refraining from inserting their own opinions or judgments about the events or the characters in the narrative.
In literature, third-person omniscient narration is a common technique used to provide a more objective narration and to present the story through various viewpoints. Notably, this form of narration contrasts with a third-person limited perspective, where the narrator's knowledge is confined to the experience and thoughts of one or several characters. The omniscient mode often makes the narration more reliable, but authors can choose to use an unreliable third-person narrator at times for specific narrative effects.