The phrase "took satisfaction in" means to feel pleased or content about something. Its antonyms would be words that express the opposite feeling, such as "displeased," "frustrated," "dissatisfied," "regretful," or "miserable." These words indicate a sense of discontentment, disappointment, or even sorrow about a particular situation, action, or outcome. When someone does not take satisfaction in something, it usually means that they have negative feelings or experiences related to it. Therefore, it's essential to understand the context in which the phrase is used to determine its antonym accurately.