The word "trothing" doesn't seem to have any widely recognized antonyms. However, depending on the context, some words may serve as opposites. For example, in the sense of a frothy liquid, antonyms could include smooth, silky, or flat. In the sense of a passionate or heated conversation, antonyms might include calm, cool, or apathetic. Alternately, one could use a more general antonym for the concept of "trothing," such as perfunctory, indifferent, or lackadaisical. Ultimately, the lack of a clear-cut antonym for "trothing" emphasizes the importance of considering context when choosing words that convey the desired meaning.
