The phrase "study at pleasure" can be replaced with several other synonyms to convey the same meaning. For instance, one can utilize the phrase "learn at leisure" to indicate that learning is taking place in a relaxed and comfortable manner. Another synonym would be to "pursue knowledge for pleasure," which indicates that the learning experience is enjoyable to the individual. Additional synonyms include "study for enjoyment," "engage in learning for personal interest," or "acquire knowledge for personal satisfaction." These phrases all convey the idea that the act of learning is being pursued for personal reasons rather than for any external pressure or obligation.