While there are several synonyms for the term "course thought", there are several antonyms as well. The term "course thought" typically refers to a person's stream of consciousness or the direction their thoughts are taking. An antonym for this would be "clear thought", which refers to a state of mind that is organized and focused. Another antonym for "course thought" is "directed thought", which implies that the individual is consciously directing their mental processes towards a specific goal. Lastly, "confused thought" can also be considered an antonym since it suggests a state of mind that is chaotic and disordered.