Cartooned refers to an object or person being depicted in a humorous or exaggerated way. The antonyms for cartooned would be realistic, natural, and serious. Realistic refers to something depicting the object or person as it is in real life, without any exaggeration or humor. Natural refers to something that appears as it is without any manipulation or alteration. Serious refers to something that is solemn or grave, without any humor or frivolity. These antonyms are appropriate in contexts where there is a need to avoid exaggeration or humor, such as in academic or professional settings.