Capsulate is an adjective that describes something enclosed in a capsule or having a capsule-like structure. The opposite of capsulate is another adjective, uncapsulated, which means not enclosed in a capsule or lacking a capsule-like structure. This term can be used to describe a variety of things, from bacteria and viruses to medication and supplements. In the medical field, uncapsulated bacteria are often more virulent and potentially dangerous than their capsulated counterparts. Beyond medicine, there are numerous other antonyms for capsulate, including open, exposed, unenclosed, unsealed, and uncovered. These terms suggest a lack of protection or containment, as opposed to capsulate's connotation of enclosure and containment.