The term "most coarsened" refers to something that has become crude or vulgar in language or behavior. Synonyms for this word include "debased," "degraded," "vulgarized," "corrupted," and "cheapened." These words all describe a decline in standards or morality, and can be used to describe a variety of situations, from the coarsening of language in popular media to the debasement of political discourse. It is important to recognize when language or behavior has become most coarsened, and to work to elevate it back to a more civilized and respectful level.