The antonyms for the word "most alight" can be "least extinguished", "least ignited", or "least burning". These antonyms describe the opposite of a fire that is blazing or burning brightly. Instead, they suggest a fire that is barely burning or has completely gone out. Other antonyms could include "least flaming", "least ablaze", or "least lit". These words can be used to describe various states of fire, from a small flame to a raging inferno, and can help create a more specific image in the reader's mind.