Most ovenlike is a comparison or description of something that is similar to an oven. Therefore, the antonyms would be words that describe things that are not similar or opposite to an oven. Some of the antonyms for most ovenlike could be words such as chilly, cool, frigid, icy, or frozen. All these words portray a sense of coldness and are very different from the heat and warmth coming out of an oven. Additionally, some other antonyms for the word most ovenlike could be airy, breezy, and cool. These words focus on airiness and a refreshing feel, which are not found in an oven.